2551215251215 has 4 divisors (see below), whose sum is σ = 3061458301464. Its totient is φ = 2040972200968.

The previous prime is 2551215251161. The next prime is 2551215251269. The reversal of 2551215251215 is 5121525121552.

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

It is an interprime number because it is at equal distance from previous prime (2551215251161) and next prime (2551215251269).

It is a cyclic number.

It is not a de Polignac number, because 2551215251215 - 2¹⁹ = 2551214726927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255121525117 + ... + 255121525126.

It is an arithmetic number, because the mean of its divisors is an integer number (765364575366).

Almost surely, 2^{2551215251215} is an apocalyptic number.

2551215251215 is a deficient number, since it is larger than the sum of its proper divisors (510243050249).

2551215251215 is an equidigital number, since it uses as much as digits as its factorization.

2551215251215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510243050248.

The product of its digits is 50000, while the sum is 37.

The spelling of 2551215251215 in words is "two trillion, five hundred fifty-one billion, two hundred fifteen million, two hundred fifty-one thousand, two hundred fifteen".