25732742 has 24 divisors (see below), whose sum is σ = 45380664. Its totient is φ = 10910592.

The previous prime is 25732727. The next prime is 25732769. The reversal of 25732742 is 24723752.

It is a junction number, because it is equal to n+sod(n) for n = 25732699 and 25732708.

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, 8153 + ... + 10859.

It is an arithmetic number, because the mean of its divisors is an integer number (1890861).

Almost surely, 2^25732742 is an apocalyptic number.

25732742 is a deficient number, since it is larger than the sum of its proper divisors (19647922).

25732742 is a wasteful number, since it uses less digits than its factorization.

25732742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2820 (or 2813 counting only the distinct ones).

The product of its digits is 23520, while the sum is 32.

The square root of 25732742 is about 5072.7450162609. The cubic root of 25732742 is about 295.2310437433.

The spelling of 25732742 in words is "twenty-five million, seven hundred thirty-two thousand, seven hundred forty-two".