42557337 has 24 divisors (see below), whose sum is σ = 64943424. Its totient is φ = 26800224.

The previous prime is 42557323. The next prime is 42557353. The reversal of 42557337 is 73375524.

It is not a de Polignac number, because 42557337 - 2¹⁰ = 42556313 is a prime.

It is a super-2 number, since 2×42557337² = 3622253865063138, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42557237) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15943 + ... + 18419.

It is an arithmetic number, because the mean of its divisors is an integer number (2705976).

Almost surely, 2^42557337 is an apocalyptic number.

It is an amenable number.

42557337 is a deficient number, since it is larger than the sum of its proper divisors (22386087).

42557337 is a wasteful number, since it uses less digits than its factorization.

42557337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2589 (or 2586 counting only the distinct ones).

The product of its digits is 88200, while the sum is 36.

The square root of 42557337 is about 6523.5984701697. The cubic root of 42557337 is about 349.1334672864.

The spelling of 42557337 in words is "forty-two million, five hundred fifty-seven thousand, three hundred thirty-seven".