25432147532 has 24 divisors (see below), whose sum is σ = 49375206720. Its totient is φ = 11364132560.

The previous prime is 25432147523. The next prime is 25432147549. The reversal of 25432147532 is 23574123452.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4895738 + ... + 4900929.

It is an arithmetic number, because the mean of its divisors is an integer number (2057300280).

Almost surely, 2^25432147532 is an apocalyptic number.

25432147532 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25432147532 is a deficient number, since it is larger than the sum of its proper divisors (23943059188).

25432147532 is a wasteful number, since it uses less digits than its factorization.

25432147532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9796741 (or 9796739 counting only the distinct ones).

The product of its digits is 201600, while the sum is 38.

The spelling of 25432147532 in words is "twenty-five billion, four hundred thirty-two million, one hundred forty-seven thousand, five hundred thirty-two".