25455964 has 6 divisors (see below), whose sum is σ = 44547944. Its totient is φ = 12727980.

The previous prime is 25455961. The next prime is 25455967. The reversal of 25455964 is 46955452.

It is an interprime number because it is at equal distance from previous prime (25455961) and next prime (25455967).

It is a super-2 number, since 2×25455964² = 1296012206338592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25455961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3181992 + ... + 3181999.

Almost surely, 2^25455964 is an apocalyptic number.

It is an amenable number.

25455964 is a deficient number, since it is larger than the sum of its proper divisors (19091980).

25455964 is a wasteful number, since it uses less digits than its factorization.

25455964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6363995 (or 6363993 counting only the distinct ones).

The product of its digits is 216000, while the sum is 40.

The square root of 25455964 is about 5045.3903714183. The cubic root of 25455964 is about 294.1687371107.

The spelling of 25455964 in words is "twenty-five million, four hundred fifty-five thousand, nine hundred sixty-four".