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55262242729 = 192908539091
BaseRepresentation
bin110011011101111000…
…101110011110101001
312021122022122210120201
4303131320232132221
51401134113231404
641215341352201
73664310212201
oct633570563651
9167568583521
1055262242729
1121489105991
12a863268661
135299039615
142963577401
15168684cca4
hexcdde2e7a9

55262242729 has 4 divisors (see below), whose sum is σ = 58170781840. Its totient is φ = 52353703620.

The previous prime is 55262242723. The next prime is 55262242757. The reversal of 55262242729 is 92724226255.

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.

It is a cyclic number.

It is not a de Polignac number, because 55262242729 - 211 = 55262240681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55262242723) 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, 1454269527 + ... + 1454269564.

It is an arithmetic number, because the mean of its divisors is an integer number (14542695460).

Almost surely, 255262242729 is an apocalyptic number.

It is an amenable number.

55262242729 is a deficient number, since it is larger than the sum of its proper divisors (2908539111).

55262242729 is a wasteful number, since it uses less digits than its factorization.

55262242729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2908539110.

The product of its digits is 1209600, while the sum is 46.

The spelling of 55262242729 in words is "fifty-five billion, two hundred sixty-two million, two hundred forty-two thousand, seven hundred twenty-nine".

Divisors: 1 19 2908539091 55262242729