25072318 has 4 divisors (see below), whose sum is σ = 37608480. Its totient is φ = 12536158.

The previous prime is 25072283. The next prime is 25072319. The reversal of 25072318 is 81327052.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×25072318² = 1257242259786248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25072319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6268078 + ... + 6268081.

It is an arithmetic number, because the mean of its divisors is an integer number (9402120).

Almost surely, 2^25072318 is an apocalyptic number.

25072318 is a deficient number, since it is larger than the sum of its proper divisors (12536162).

25072318 is a wasteful number, since it uses less digits than its factorization.

25072318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12536161.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 25072318 is about 5007.2265776575. The cubic root of 25072318 is about 292.6834478806.

The spelling of 25072318 in words is "twenty-five million, seventy-two thousand, three hundred eighteen".