56242497 has 4 divisors (see below), whose sum is σ = 74990000. Its totient is φ = 37494996.

The previous prime is 56242493. The next prime is 56242499. The reversal of 56242497 is 79424265.

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 56242497 - 2² = 56242493 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56242493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9373747 + ... + 9373752.

It is an arithmetic number, because the mean of its divisors is an integer number (18747500).

Almost surely, 2^56242497 is an apocalyptic number.

It is an amenable number.

56242497 is a deficient number, since it is larger than the sum of its proper divisors (18747503).

56242497 is a wasteful number, since it uses less digits than its factorization.

56242497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18747502.

The product of its digits is 120960, while the sum is 39.

The square root of 56242497 is about 7499.4997833189. The cubic root of 56242497 is about 383.1376795291.

The spelling of 56242497 in words is "fifty-six million, two hundred forty-two thousand, four hundred ninety-seven".