42251877 has 12 divisors (see below), whose sum is σ = 64242880. Its totient is φ = 26685288.

The previous prime is 42251873. The next prime is 42251893. The reversal of 42251877 is 77815224.

It is not a de Polignac number, because 42251877 - 2² = 42251873 is a prime.

It is a super-2 number, since 2×42251877² = 3570442220046258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42251873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123373 + ... + 123714.

Almost surely, 2^42251877 is an apocalyptic number.

It is an amenable number.

42251877 is a deficient number, since it is larger than the sum of its proper divisors (21991003).

42251877 is a wasteful number, since it uses less digits than its factorization.

42251877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247112 (or 247109 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 42251877 is about 6500.1443830118. The cubic root of 42251877 is about 348.2961460470.

The spelling of 42251877 in words is "forty-two million, two hundred fifty-one thousand, eight hundred seventy-seven".