25475630415 has 32 divisors (see below), whose sum is σ = 45035191296. Its totient is φ = 12231774720.

The previous prime is 25475630413. The next prime is 25475630417. The reversal of 25475630415 is 51403657452.

It is an interprime number because it is at equal distance from previous prime (25475630413) and next prime (25475630417).

It is not a de Polignac number, because 25475630415 - 2¹ = 25475630413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25475630413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2165971 + ... + 2177700.

It is an arithmetic number, because the mean of its divisors is an integer number (1407349728).

Almost surely, 2^25475630415 is an apocalyptic number.

25475630415 is a deficient number, since it is larger than the sum of its proper divisors (19559560881).

25475630415 is a wasteful number, since it uses less digits than its factorization.

25475630415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4343719.

The product of its (nonzero) digits is 504000, while the sum is 42.

The spelling of 25475630415 in words is "twenty-five billion, four hundred seventy-five million, six hundred thirty thousand, four hundred fifteen".