25623730 has 32 divisors (see below), whose sum is σ = 51020928. Its totient is φ = 9187200.

The previous prime is 25623727. The next prime is 25623737. The reversal of 25623730 is 3732652.

It is a super-2 number, since 2×25623730² = 1313151078225800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25623737) 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, 6435 + ... + 9625.

It is an arithmetic number, because the mean of its divisors is an integer number (1594404).

Almost surely, 2^25623730 is an apocalyptic number.

25623730 is a deficient number, since it is larger than the sum of its proper divisors (25397198).

25623730 is a wasteful number, since it uses less digits than its factorization.

25623730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3282.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 25623730 is about 5061.9887396161. The cubic root of 25623730 is about 294.8135564218.

The spelling of 25623730 in words is "twenty-five million, six hundred twenty-three thousand, seven hundred thirty".