25742432 has 24 divisors (see below), whose sum is σ = 51030000. Its totient is φ = 12782464.

The previous prime is 25742429. The next prime is 25742443. The reversal of 25742432 is 23424752.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 25742395 and 25742404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2069 + ... + 7467.

It is an arithmetic number, because the mean of its divisors is an integer number (2126250).

Almost surely, 2^25742432 is an apocalyptic number.

It is an amenable number.

25742432 is a deficient number, since it is larger than the sum of its proper divisors (25287568).

25742432 is a wasteful number, since it uses less digits than its factorization.

25742432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5558 (or 5550 counting only the distinct ones).

The product of its digits is 13440, while the sum is 29.

The square root of 25742432 is about 5073.7000305497. The cubic root of 25742432 is about 295.2680967943.

The spelling of 25742432 in words is "twenty-five million, seven hundred forty-two thousand, four hundred thirty-two".