25700036431 has 2 divisors, whose sum is σ = 25700036432. Its totient is φ = 25700036430.

The previous prime is 25700036371. The next prime is 25700036441. The reversal of 25700036431 is 13463000752.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25700036431 - 2²⁷ = 25565818703 is a prime.

It is a super-2 number, since 2×25700036431² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25700036393 and 25700036402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25700036441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12850018215 + 12850018216.

It is an arithmetic number, because the mean of its divisors is an integer number (12850018216).

Almost surely, 2^25700036431 is an apocalyptic number.

25700036431 is a deficient number, since it is larger than the sum of its proper divisors (1).

25700036431 is an equidigital number, since it uses as much as digits as its factorization.

25700036431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 31.

The spelling of 25700036431 in words is "twenty-five billion, seven hundred million, thirty-six thousand, four hundred thirty-one".