42497613 has 6 divisors (see below), whose sum is σ = 61385454. Its totient is φ = 28331736.

The previous prime is 42497593. The next prime is 42497627. The reversal of 42497613 is 31679424.

It can be written as a sum of positive squares in only one way, i.e., 25826724 + 16670889 = 5082^2 + 4083^2 .

It is not a de Polignac number, because 42497613 - 2⁹ = 42497101 is a prime.

It is a super-2 number, since 2×42497613² = 3612094221395538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42497633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2360970 + ... + 2360987.

It is an arithmetic number, because the mean of its divisors is an integer number (10230909).

Almost surely, 2^42497613 is an apocalyptic number.

It is an amenable number.

42497613 is a deficient number, since it is larger than the sum of its proper divisors (18887841).

42497613 is a wasteful number, since it uses less digits than its factorization.

42497613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4721963 (or 4721960 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 42497613 is about 6519.0193280892. The cubic root of 42497613 is about 348.9700688337.

The spelling of 42497613 in words is "forty-two million, four hundred ninety-seven thousand, six hundred thirteen".