25601532 has 24 divisors (see below), whose sum is σ = 65167872. Its totient is φ = 7758000.

The previous prime is 25601509. The next prime is 25601533. The reversal of 25601532 is 23510652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25601533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96844 + ... + 97107.

It is an arithmetic number, because the mean of its divisors is an integer number (2715328).

Almost surely, 2^25601532 is an apocalyptic number.

25601532 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25601532 is an abundant number, since it is smaller than the sum of its proper divisors (39566340).

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

25601532 is a wasteful number, since it uses less digits than its factorization.

25601532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193969 (or 193967 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 25601532 is about 5059.7956480475. The cubic root of 25601532 is about 294.7283988742.

The spelling of 25601532 in words is "twenty-five million, six hundred one thousand, five hundred thirty-two".