56197259 has 4 divisors (see below), whose sum is σ = 57504216. Its totient is φ = 54890304.

The previous prime is 56197237. The next prime is 56197261. The reversal of 56197259 is 95279165.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56197259 - 2²⁰ = 55148683 is a prime.

It is a super-2 number, since 2×56197259² = 6316263838226162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56197279) 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, 653414 + ... + 653499.

It is an arithmetic number, because the mean of its divisors is an integer number (14376054).

Almost surely, 2^56197259 is an apocalyptic number.

56197259 is a deficient number, since it is larger than the sum of its proper divisors (1306957).

56197259 is a wasteful number, since it uses less digits than its factorization.

56197259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306956.

The product of its digits is 170100, while the sum is 44.

The square root of 56197259 is about 7496.4831087651. The cubic root of 56197259 is about 383.0349278592.

The spelling of 56197259 in words is "fifty-six million, one hundred ninety-seven thousand, two hundred fifty-nine".