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55903502293 = 471189436219
BaseRepresentation
bin110100000100000110…
…111011111111010101
312100022000022011022221
4310010012323333111
51403442244033133
641403130022341
74016224633462
oct640406737725
9170260264287
1055903502293
1121788084771
12aa01b779b1
13536bb50152
1429c47c0669
1516c2cbaa2d
hexd041bbfd5

55903502293 has 4 divisors (see below), whose sum is σ = 57092938560. Its totient is φ = 54714066028.

The previous prime is 55903502269. The next prime is 55903502401. The reversal of 55903502293 is 39220530955.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2k-55903502293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55903502693) 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, 594718063 + ... + 594718156.

It is an arithmetic number, because the mean of its divisors is an integer number (14273234640).

Almost surely, 255903502293 is an apocalyptic number.

It is an amenable number.

55903502293 is a deficient number, since it is larger than the sum of its proper divisors (1189436267).

55903502293 is a wasteful number, since it uses less digits than its factorization.

55903502293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189436266.

The product of its (nonzero) digits is 364500, while the sum is 43.

The spelling of 55903502293 in words is "fifty-five billion, nine hundred three million, five hundred two thousand, two hundred ninety-three".

Divisors: 1 47 1189436219 55903502293