88257613 has 2 divisors, whose sum is σ = 88257614. Its totient is φ = 88257612.

The previous prime is 88257583. The next prime is 88257619. The reversal of 88257613 is 31675288.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84879369 + 3378244 = 9213^2 + 1838^2 .

It is a cyclic number.

It is not a de Polignac number, because 88257613 - 2⁵ = 88257581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88257619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44128806 + 44128807.

It is an arithmetic number, because the mean of its divisors is an integer number (44128807).

Almost surely, 2^88257613 is an apocalyptic number.

It is an amenable number.

88257613 is a deficient number, since it is larger than the sum of its proper divisors (1).

88257613 is an equidigital number, since it uses as much as digits as its factorization.

88257613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 40.

The square root of 88257613 is about 9394.5523043943. The cubic root of 88257613 is about 445.2296302542.

The spelling of 88257613 in words is "eighty-eight million, two hundred fifty-seven thousand, six hundred thirteen".