2555542251 has 16 divisors (see below), whose sum is σ = 3788812800. Its totient is φ = 1702423944.

The previous prime is 2555542243. The next prime is 2555542261. The reversal of 2555542251 is 1522455552.

2555542251 is a `hidden beast` number, since 2 + 55 + 554 + 2 + 2 + 51 = 666.

It is not a de Polignac number, because 2555542251 - 2³ = 2555542243 is a prime.

It is a super-2 number, since 2×2555542251² = 13061592393292294002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2555542201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2290 + ... + 71528.

It is an arithmetic number, because the mean of its divisors is an integer number (236800800).

Almost surely, 2^2555542251 is an apocalyptic number.

2555542251 is a deficient number, since it is larger than the sum of its proper divisors (1233270549).

2555542251 is a wasteful number, since it uses less digits than its factorization.

2555542251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70615 (or 70609 counting only the distinct ones).

The product of its digits is 100000, while the sum is 36.

The square root of 2555542251 is about 50552.3713687103. The cubic root of 2555542251 is about 1367.1862706425.

The spelling of 2555542251 in words is "two billion, five hundred fifty-five million, five hundred forty-two thousand, two hundred fifty-one".