42557015 has 8 divisors (see below), whose sum is σ = 53288928. Its totient is φ = 32565280.

The previous prime is 42556999. The next prime is 42557051. The reversal of 42557015 is 51075524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42557015 - 2⁴ = 42556999 is a prime.

It is a super-2 number, since 2×42557015² = 3622199051420450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184916 + ... + 185145.

It is an arithmetic number, because the mean of its divisors is an integer number (6661116).

Almost surely, 2^42557015 is an apocalyptic number.

42557015 is a deficient number, since it is larger than the sum of its proper divisors (10731913).

42557015 is a wasteful number, since it uses less digits than its factorization.

42557015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370089.

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 42557015 is about 6523.5737904924. The cubic root of 42557015 is about 349.1325867390.

The spelling of 42557015 in words is "forty-two million, five hundred fifty-seven thousand, fifteen".