88042557 has 4 divisors (see below), whose sum is σ = 117390080. Its totient is φ = 58695036.

The previous prime is 88042531. The next prime is 88042571. The reversal of 88042557 is 75524088.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 88042557 - 2⁷ = 88042429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88082557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14673757 + ... + 14673762.

It is an arithmetic number, because the mean of its divisors is an integer number (29347520).

Almost surely, 2^88042557 is an apocalyptic number.

It is an amenable number.

88042557 is a deficient number, since it is larger than the sum of its proper divisors (29347523).

88042557 is a wasteful number, since it uses less digits than its factorization.

88042557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29347522.

The product of its (nonzero) digits is 89600, while the sum is 39.

The square root of 88042557 is about 9383.0995411964. The cubic root of 88042557 is about 444.8677080137.

The spelling of 88042557 in words is "eighty-eight million, forty-two thousand, five hundred fifty-seven".