25492401 has 63 divisors (see below), whose sum is σ = 44628283. Its totient is φ = 14541120.

The previous prime is 25492381. The next prime is 25492427. The reversal of 25492401 is 10429452.

The square root of 25492401 is 5049.

It is a perfect power (a square), and thus also a powerful number.

25492401 is a `hidden beast` number, since 254 + 9 + 2 + 401 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19847025 + 5645376 = 4455^2 + 2376^2 .

It is not a de Polignac number, because 25492401 - 2¹³ = 25484209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25492451) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 1499545 + ... + 1499561.

Almost surely, 2^25492401 is an apocalyptic number.

25492401 is the 5049-th square number.

25492401 is the 2525-th centered octagonal number.

It is an amenable number.

25492401 is a deficient number, since it is larger than the sum of its proper divisors (19135882).

25492401 is an equidigital number, since it uses as much as digits as its factorization.

25492401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74 (or 31 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The cubic root of 25492401 is about 294.3090253383.

It can be divided in two parts, 2549 and 2401, that added together give a triangular number (4950 = T₉₉).

The spelling of 25492401 in words is "twenty-five million, four hundred ninety-two thousand, four hundred one".