2555210051 has 4 divisors (see below), whose sum is σ = 2555779512. Its totient is φ = 2554640592.

The previous prime is 2555210023. The next prime is 2555210069. The reversal of 2555210051 is 1500125552.

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

It is a cyclic number.

It is not a de Polignac number, because 2555210051 - 2¹⁸ = 2554947907 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2555210051.

It is not an unprimeable number, because it can be changed into a prime (2555210081) 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, 277946 + ... + 286991.

It is an arithmetic number, because the mean of its divisors is an integer number (638944878).

Almost surely, 2^2555210051 is an apocalyptic number.

2555210051 is a deficient number, since it is larger than the sum of its proper divisors (569461).

2555210051 is an equidigital number, since it uses as much as digits as its factorization.

2555210051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569460.

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 2555210051 is about 50549.0855604728. The cubic root of 2555210051 is about 1367.1270269914.

The spelling of 2555210051 in words is "two billion, five hundred fifty-five million, two hundred ten thousand, fifty-one".