25299540031 has 2 divisors, whose sum is σ = 25299540032. Its totient is φ = 25299540030.

The previous prime is 25299539971. The next prime is 25299540037. The reversal of 25299540031 is 13004599252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25299540031 - 2²³ = 25291151423 is a prime.

It is a super-2 number, since 2×25299540031² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25299540037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12649770015 + 12649770016.

It is an arithmetic number, because the mean of its divisors is an integer number (12649770016).

Almost surely, 2^25299540031 is an apocalyptic number.

25299540031 is a deficient number, since it is larger than the sum of its proper divisors (1).

25299540031 is an equidigital number, since it uses as much as digits as its factorization.

25299540031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 40.

The spelling of 25299540031 in words is "twenty-five billion, two hundred ninety-nine million, five hundred forty thousand, thirty-one".