25418963 has 12 divisors (see below), whose sum is σ = 26758992. Its totient is φ = 24127920.

The previous prime is 25418957. The next prime is 25418969. The reversal of 25418963 is 36981452.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25418957) and next prime (25418969).

It is not a de Polignac number, because 25418963 - 2⁸ = 25418707 is a prime.

It is a super-2 number, since 2×25418963² = 1292247359990738, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (25418969) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81578 + ... + 81888.

It is an arithmetic number, because the mean of its divisors is an integer number (2229916).

Almost surely, 2^25418963 is an apocalyptic number.

25418963 is a deficient number, since it is larger than the sum of its proper divisors (1340029).

25418963 is an equidigital number, since it uses as much as digits as its factorization.

25418963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442 (or 395 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 25418963 is about 5041.7222255892. The cubic root of 25418963 is about 294.0261403323.

The spelling of 25418963 in words is "twenty-five million, four hundred eighteen thousand, nine hundred sixty-three".