25361172 has 18 divisors (see below), whose sum is σ = 64107498. Its totient is φ = 8453712.

The previous prime is 25361159. The next prime is 25361179. The reversal of 25361172 is 27116352.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 24561936 + 799236 = 4956^2 + 894^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25361179) 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, 352203 + ... + 352274.

Almost surely, 2^25361172 is an apocalyptic number.

It is an amenable number.

25361172 is an abundant number, since it is smaller than the sum of its proper divisors (38746326).

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

25361172 is a wasteful number, since it uses less digits than its factorization.

25361172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704487 (or 704482 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 25361172 is about 5035.9876886267. The cubic root of 25361172 is about 293.8031446324.

It can be divided in two parts, 253 and 61172, that added together give a triangular number (61425 = T₃₅₀).

The spelling of 25361172 in words is "twenty-five million, three hundred sixty-one thousand, one hundred seventy-two".