55887623305251 has 32 divisors (see below), whose sum is σ = 78548870400000. Its totient is φ = 35297554094208.

The previous prime is 55887623305247. The next prime is 55887623305253. The reversal of 55887623305251 is 15250332678855.

It is not a de Polignac number, because 55887623305251 - 2² = 55887623305247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55887623305253) 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, 27632251 + ... + 29585748.

It is an arithmetic number, because the mean of its divisors is an integer number (2454652200000).

Almost surely, 2^{55887623305251} is an apocalyptic number.

55887623305251 is a deficient number, since it is larger than the sum of its proper divisors (22661247094749).

55887623305251 is a wasteful number, since it uses less digits than its factorization.

55887623305251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57218243.

The product of its (nonzero) digits is 60480000, while the sum is 60.

The spelling of 55887623305251 in words is "fifty-five trillion, eight hundred eighty-seven billion, six hundred twenty-three million, three hundred five thousand, two hundred fifty-one".