25360531 has 8 divisors (see below), whose sum is σ = 29088864. Its totient is φ = 21658560.

The previous prime is 25360523. The next prime is 25360537. The reversal of 25360531 is 13506352.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25360531 - 2³ = 25360523 is a prime.

It is a super-2 number, since 2×25360531² = 1286313065203922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25360496 and 25360505.

It is not an unprimeable number, because it can be changed into a prime (25360537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4480 + ... + 8413.

It is an arithmetic number, because the mean of its divisors is an integer number (3636108).

Almost surely, 2^25360531 is an apocalyptic number.

25360531 is a deficient number, since it is larger than the sum of its proper divisors (3728333).

25360531 is a wasteful number, since it uses less digits than its factorization.

25360531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13181.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 25360531 is about 5035.9240462898. The cubic root of 25360531 is about 293.8006693340.

Adding to 25360531 its reverse (13506352), we get a palindrome (38866883).

The spelling of 25360531 in words is "twenty-five million, three hundred sixty thousand, five hundred thirty-one".