25471964 has 18 divisors (see below), whose sum is σ = 51854040. Its totient is φ = 10916472.

The previous prime is 25471961. The next prime is 25471969. The reversal of 25471964 is 46917452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25471961) 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 in 5 ways as a sum of consecutive naturals, for example, 64784 + ... + 65175.

It is an arithmetic number, because the mean of its divisors is an integer number (2880780).

Almost surely, 2^25471964 is an apocalyptic number.

It is an amenable number.

25471964 is an abundant number, since it is smaller than the sum of its proper divisors (26382076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25471964 is a wasteful number, since it uses less digits than its factorization.

25471964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129977 (or 129968 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 25471964 is about 5046.9757280970. The cubic root of 25471964 is about 294.2303561224.

The spelling of 25471964 in words is "twenty-five million, four hundred seventy-one thousand, nine hundred sixty-four".