25461953 has 4 divisors (see below), whose sum is σ = 27776688. Its totient is φ = 23147220.

The previous prime is 25461929. The next prime is 25461959. The reversal of 25461953 is 35916452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25461953 - 2¹⁴ = 25445569 is a prime.

It is a super-2 number, since 2×25461953² = 1296622101148418, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25461959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1157351 + ... + 1157372.

It is an arithmetic number, because the mean of its divisors is an integer number (6944172).

Almost surely, 2^25461953 is an apocalyptic number.

It is an amenable number.

25461953 is a deficient number, since it is larger than the sum of its proper divisors (2314735).

25461953 is a wasteful number, since it uses less digits than its factorization.

25461953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2314734.

The product of its digits is 32400, while the sum is 35.

The square root of 25461953 is about 5045.9838485671. The cubic root of 25461953 is about 294.1918048997.

The spelling of 25461953 in words is "twenty-five million, four hundred sixty-one thousand, nine hundred fifty-three".