25907742 has 32 divisors (see below), whose sum is σ = 65798400. Its totient is φ = 7402104.

The previous prime is 25907731. The next prime is 25907743. The reversal of 25907742 is 24770952.

It is a super-2 number, since 2×25907742² = 1342422191077128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25907697 and 25907706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25907743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33892 + ... + 34647.

It is an arithmetic number, because the mean of its divisors is an integer number (2056200).

Almost surely, 2^25907742 is an apocalyptic number.

25907742 is an abundant number, since it is smaller than the sum of its proper divisors (39890658).

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

25907742 is a wasteful number, since it uses less digits than its factorization.

25907742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68557 (or 68551 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 25907742 is about 5089.9648328844. The cubic root of 25907742 is about 295.8987890517.

The spelling of 25907742 in words is "twenty-five million, nine hundred seven thousand, seven hundred forty-two".