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55642002037 = 192928526423
BaseRepresentation
bin110011110100100001…
…011001001001110101
312022121210020120102021
4303310201121021311
51402423323031122
641321145113141
74006601133166
oct636441311165
9168553216367
1055642002037
1121663506756
12a94a4887b1
13532991207b
14299bb8d76d
1516a9d641c7
hexcf4859275

55642002037 has 4 divisors (see below), whose sum is σ = 58570528480. Its totient is φ = 52713475596.

The previous prime is 55642002029. The next prime is 55642002043. The reversal of 55642002037 is 73020024655.

55642002037 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73020024655 = 514604004931.

It is a cyclic number.

It is not a de Polignac number, because 55642002037 - 23 = 55642002029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55642001993 and 55642002011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55642102037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1464263193 + ... + 1464263230.

It is an arithmetic number, because the mean of its divisors is an integer number (14642632120).

Almost surely, 255642002037 is an apocalyptic number.

It is an amenable number.

55642002037 is a deficient number, since it is larger than the sum of its proper divisors (2928526443).

55642002037 is a wasteful number, since it uses less digits than its factorization.

55642002037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2928526442.

The product of its (nonzero) digits is 50400, while the sum is 34.

The spelling of 55642002037 in words is "fifty-five billion, six hundred forty-two million, two thousand, thirty-seven".

Divisors: 1 19 2928526423 55642002037