2151232513255 has 32 divisors (see below), whose sum is σ = 3125786250240. Its totient is φ = 1387478592000.

The previous prime is 2151232513229. The next prime is 2151232513271. The reversal of 2151232513255 is 5523152321512.

It is not a de Polignac number, because 2151232513255 - 2⁷ = 2151232513127 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205371 + ... + 2084380.

It is an arithmetic number, because the mean of its divisors is an integer number (97680820320).

Almost surely, 2^{2151232513255} is an apocalyptic number.

2151232513255 is a deficient number, since it is larger than the sum of its proper divisors (974553736985).

2151232513255 is a wasteful number, since it uses less digits than its factorization.

2151232513255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2291359.

The product of its digits is 90000, while the sum is 37.

Adding to 2151232513255 its reverse (5523152321512), we get a palindrome (7674384834767).

The spelling of 2151232513255 in words is "two trillion, one hundred fifty-one billion, two hundred thirty-two million, five hundred thirteen thousand, two hundred fifty-five".