25300531 has 2 divisors, whose sum is σ = 25300532. Its totient is φ = 25300530.

The previous prime is 25300511. The next prime is 25300537. The reversal of 25300531 is 13500352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25300531 - 2¹⁹ = 24776243 is a prime.

It is a super-2 number, since 2×25300531² = 1280233737763922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25300499 and 25300508.

It is not a weakly prime, because it can be changed into another prime (25300537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12650265 + 12650266.

It is an arithmetic number, because the mean of its divisors is an integer number (12650266).

Almost surely, 2^25300531 is an apocalyptic number.

25300531 is a deficient number, since it is larger than the sum of its proper divisors (1).

25300531 is an equidigital number, since it uses as much as digits as its factorization.

25300531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 25300531 is about 5029.9633199458. The cubic root of 25300531 is about 293.5687872228.

Adding to 25300531 its reverse (13500352), we get a palindrome (38800883).

The spelling of 25300531 in words is "twenty-five million, three hundred thousand, five hundred thirty-one".