25012971 has 12 divisors (see below), whose sum is σ = 36970648. Its totient is φ = 16287264.

The previous prime is 25012969. The next prime is 25012973. The reversal of 25012971 is 17921052.

It is an interprime number because it is at equal distance from previous prime (25012969) and next prime (25012973).

It is not a de Polignac number, because 25012971 - 2¹ = 25012969 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25012973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31930 + ... + 32703.

Almost surely, 2^25012971 is an apocalyptic number.

25012971 is a deficient number, since it is larger than the sum of its proper divisors (11957677).

25012971 is a wasteful number, since it uses less digits than its factorization.

25012971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64682 (or 64679 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 25012971 is about 5001.2969317968. The cubic root of 25012971 is about 292.4523349900.

The spelling of 25012971 in words is "twenty-five million, twelve thousand, nine hundred seventy-one".