56547877 has 4 divisors (see below), whose sum is σ = 58076236. Its totient is φ = 55019520.

The previous prime is 56547871. The next prime is 56547913. The reversal of 56547877 is 77874565.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 54626881 + 1920996 = 7391^2 + 1386^2 .

It is a cyclic number.

It is not a de Polignac number, because 56547877 - 2⁷ = 56547749 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56547877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56547871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 764124 + ... + 764197.

It is an arithmetic number, because the mean of its divisors is an integer number (14519059).

Almost surely, 2^56547877 is an apocalyptic number.

It is an amenable number.

56547877 is a deficient number, since it is larger than the sum of its proper divisors (1528359).

56547877 is a wasteful number, since it uses less digits than its factorization.

56547877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528358.

The product of its digits is 1646400, while the sum is 49.

The square root of 56547877 is about 7519.8322454693. The cubic root of 56547877 is about 383.8298693869.

It can be divided in two parts, 5654 and 7877, that added together give a palindrome (13531).

The spelling of 56547877 in words is "fifty-six million, five hundred forty-seven thousand, eight hundred seventy-seven".