55000055050557 has 32 divisors (see below), whose sum is σ = 79939215705600. Its totient is φ = 33503636472768.

The previous prime is 55000055050537. The next prime is 55000055050583. The reversal of 55000055050557 is 75505055000055.

It is a de Polignac number, because none of the positive numbers 2^k-55000055050557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55000055050517) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16002123 + ... + 19132904.

It is an arithmetic number, because the mean of its divisors is an integer number (2498100490800).

Almost surely, 2^{55000055050557} is an apocalyptic number.

55000055050557 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

55000055050557 is a deficient number, since it is larger than the sum of its proper divisors (24939160655043).

55000055050557 is a wasteful number, since it uses less digits than its factorization.

55000055050557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35136025.

The product of its (nonzero) digits is 546875, while the sum is 42.

The spelling of 55000055050557 in words is "fifty-five trillion, fifty-five million, fifty thousand, five hundred fifty-seven".