55610002251 has 16 divisors (see below), whose sum is σ = 87231376800. Its totient is φ = 34892550144.

The previous prime is 55610002213. The next prime is 55610002289. The reversal of 55610002251 is 15220001655.

55610002251 is a `hidden beast` number, since 556 + 100 + 0 + 2 + 2 + 5 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (55610002213) and next prime (55610002289).

It is not a de Polignac number, because 55610002251 - 2¹¹ = 55610000203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (55610002451) 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, 60576886 + ... + 60577803.

It is an arithmetic number, because the mean of its divisors is an integer number (5451961050).

Almost surely, 2^55610002251 is an apocalyptic number.

55610002251 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

55610002251 is a deficient number, since it is larger than the sum of its proper divisors (31621374549).

55610002251 is a wasteful number, since it uses less digits than its factorization.

55610002251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121154715 (or 121154709 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The spelling of 55610002251 in words is "fifty-five billion, six hundred ten million, two thousand, two hundred fifty-one".