55887433057 has 4 divisors (see below), whose sum is σ = 56941912980. Its totient is φ = 54832953136.

The previous prime is 55887433033. The next prime is 55887433073. The reversal of 55887433057 is 75033478855.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16999987456 + 38887445601 = 130384^2 + 197199^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55887433057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55887432989 and 55887433007.

It is not an unprimeable number, because it can be changed into a prime (55887433097) 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, 527239882 + ... + 527239987.

It is an arithmetic number, because the mean of its divisors is an integer number (14235478245).

Almost surely, 2^55887433057 is an apocalyptic number.

It is an amenable number.

55887433057 is a deficient number, since it is larger than the sum of its proper divisors (1054479923).

55887433057 is a wasteful number, since it uses less digits than its factorization.

55887433057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054479922.

The product of its (nonzero) digits is 14112000, while the sum is 55.

The spelling of 55887433057 in words is "fifty-five billion, eight hundred eighty-seven million, four hundred thirty-three thousand, fifty-seven".