25139091323 has 2 divisors, whose sum is σ = 25139091324. Its totient is φ = 25139091322.

The previous prime is 25139091277. The next prime is 25139091403. The reversal of 25139091323 is 32319093152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25139091323 - 2²² = 25134897019 is a prime.

It is a super-2 number, since 2×25139091323² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25139091023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12569545661 + 12569545662.

It is an arithmetic number, because the mean of its divisors is an integer number (12569545662).

Almost surely, 2^25139091323 is an apocalyptic number.

25139091323 is a deficient number, since it is larger than the sum of its proper divisors (1).

25139091323 is an equidigital number, since it uses as much as digits as its factorization.

25139091323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43740, while the sum is 38.

The spelling of 25139091323 in words is "twenty-five billion, one hundred thirty-nine million, ninety-one thousand, three hundred twenty-three".