55775500533 has 16 divisors (see below), whose sum is σ = 82642672000. Its totient is φ = 37178131680.

The previous prime is 55775500523. The next prime is 55775500537. The reversal of 55775500533 is 33500557755.

It is not a de Polignac number, because 55775500533 - 2¹² = 55775496437 is a prime.

It is a super-2 number, since 2×55775500533² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55775500537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35193 + ... + 335841.

It is an arithmetic number, because the mean of its divisors is an integer number (5165167000).

Almost surely, 2^55775500533 is an apocalyptic number.

It is an amenable number.

55775500533 is a deficient number, since it is larger than the sum of its proper divisors (26867171467).

55775500533 is a wasteful number, since it uses less digits than its factorization.

55775500533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307529 (or 307523 counting only the distinct ones).

The product of its (nonzero) digits is 1378125, while the sum is 45.

The spelling of 55775500533 in words is "fifty-five billion, seven hundred seventy-five million, five hundred thousand, five hundred thirty-three".