25134032664 has 48 divisors (see below), whose sum is σ = 73307598000. Its totient is φ = 7733548224.

The previous prime is 25134032639. The next prime is 25134032689. The reversal of 25134032664 is 46623043152.

25134032664 is a `hidden beast` number, since 2 + 51 + 340 + 3 + 266 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (25134032639) and next prime (25134032689).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13425364 + ... + 13427235.

It is an arithmetic number, because the mean of its divisors is an integer number (1527241625).

Almost surely, 2^25134032664 is an apocalyptic number.

25134032664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25134032664 is an abundant number, since it is smaller than the sum of its proper divisors (48173565336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25134032664 is a wasteful number, since it uses less digits than its factorization.

25134032664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26852624 (or 26852617 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The spelling of 25134032664 in words is "twenty-five billion, one hundred thirty-four million, thirty-two thousand, six hundred sixty-four".