25642954 has 4 divisors (see below), whose sum is σ = 38464434. Its totient is φ = 12821476.

The previous prime is 25642949. The next prime is 25642957. The reversal of 25642954 is 45924652.

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

It can be written as a sum of positive squares in only one way, i.e., 20912329 + 4730625 = 4573^2 + 2175^2 .

It is a super-2 number, since 2×25642954² = 1315122179692232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25642957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6410737 + ... + 6410740.

Almost surely, 2^25642954 is an apocalyptic number.

25642954 is a deficient number, since it is larger than the sum of its proper divisors (12821480).

25642954 is a wasteful number, since it uses less digits than its factorization.

25642954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12821479.

The product of its digits is 86400, while the sum is 37.

The square root of 25642954 is about 5063.8872420306. The cubic root of 25642954 is about 294.8872651684.

The spelling of 25642954 in words is "twenty-five million, six hundred forty-two thousand, nine hundred fifty-four".