25275151515 has 16 divisors (see below), whose sum is σ = 40443038496. Its totient is φ = 13479148800.

The previous prime is 25275151481. The next prime is 25275151529. The reversal of 25275151515 is 51515157252.

It is not a de Polignac number, because 25275151515 - 2⁸ = 25275151259 is a prime.

25275151515 is a modest number, since divided by 151515 gives 25275 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204025 + ... + 303605.

It is an arithmetic number, because the mean of its divisors is an integer number (2527689906).

Almost surely, 2^25275151515 is an apocalyptic number.

25275151515 is a deficient number, since it is larger than the sum of its proper divisors (15167886981).

25275151515 is a wasteful number, since it uses less digits than its factorization.

25275151515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116510.

The product of its digits is 87500, while the sum is 39.

The spelling of 25275151515 in words is "twenty-five billion, two hundred seventy-five million, one hundred fifty-one thousand, five hundred fifteen".