88380557 has 2 divisors, whose sum is σ = 88380558. Its totient is φ = 88380556.

The previous prime is 88380517. The next prime is 88380613. The reversal of 88380557 is 75508388.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73856836 + 14523721 = 8594^2 + 3811^2 .

It is a cyclic number.

It is not a de Polignac number, because 88380557 - 2⁶ = 88380493 is a prime.

It is a super-2 number, since 2×88380557² = 15622245711260498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88380517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44190278 + 44190279.

It is an arithmetic number, because the mean of its divisors is an integer number (44190279).

Almost surely, 2^88380557 is an apocalyptic number.

It is an amenable number.

88380557 is a deficient number, since it is larger than the sum of its proper divisors (1).

88380557 is an equidigital number, since it uses as much as digits as its factorization.

88380557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 268800, while the sum is 44.

The square root of 88380557 is about 9401.0933938558. The cubic root of 88380557 is about 445.4362712166.

The spelling of 88380557 in words is "eighty-eight million, three hundred eighty thousand, five hundred fifty-seven".