25948234537 has 2 divisors, whose sum is σ = 25948234538. Its totient is φ = 25948234536.

The previous prime is 25948234511. The next prime is 25948234547. The reversal of 25948234537 is 73543284952.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23770238976 + 2177995561 = 154176^2 + 46669^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25948234537 is a prime.

It is not a weakly prime, because it can be changed into another prime (25948234547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12974117268 + 12974117269.

It is an arithmetic number, because the mean of its divisors is an integer number (12974117269).

Almost surely, 2^25948234537 is an apocalyptic number.

It is an amenable number.

25948234537 is a deficient number, since it is larger than the sum of its proper divisors (1).

25948234537 is an equidigital number, since it uses as much as digits as its factorization.

25948234537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7257600, while the sum is 52.

The spelling of 25948234537 in words is "twenty-five billion, nine hundred forty-eight million, two hundred thirty-four thousand, five hundred thirty-seven".