25373961 has 6 divisors (see below), whose sum is σ = 36651290. Its totient is φ = 16915968.

The previous prime is 25373923. The next prime is 25373969. The reversal of 25373961 is 16937352.

It can be written as a sum of positive squares in only one way, i.e., 17640000 + 7733961 = 4200^2 + 2781^2 .

It is not a de Polignac number, because 25373961 - 2¹⁰ = 25372937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25373969) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1409656 + ... + 1409673.

Almost surely, 2^25373961 is an apocalyptic number.

It is an amenable number.

25373961 is a deficient number, since it is larger than the sum of its proper divisors (11277329).

25373961 is a wasteful number, since it uses less digits than its factorization.

25373961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2819335 (or 2819332 counting only the distinct ones).

The product of its digits is 34020, while the sum is 36.

The square root of 25373961 is about 5037.2572894384. The cubic root of 25373961 is about 293.8525221743.

The spelling of 25373961 in words is "twenty-five million, three hundred seventy-three thousand, nine hundred sixty-one".