56447875 has 32 divisors (see below), whose sum is σ = 78227136. Its totient is φ = 40320000.

The previous prime is 56447861. The next prime is 56447921. The reversal of 56447875 is 57874465.

It is a happy number.

It is not a de Polignac number, because 56447875 - 2¹³ = 56439683 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83539 + ... + 84211.

It is an arithmetic number, because the mean of its divisors is an integer number (2444598).

Almost surely, 2^56447875 is an apocalyptic number.

56447875 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

56447875 is a deficient number, since it is larger than the sum of its proper divisors (21779261).

56447875 is a wasteful number, since it uses less digits than its factorization.

56447875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760 (or 750 counting only the distinct ones).

The product of its digits is 940800, while the sum is 46.

The square root of 56447875 is about 7513.1800856894. The cubic root of 56447875 is about 383.6034747784.

It can be divided in two parts, 56 and 447875, that added together give a triangular number (447931 = T₉₄₆).

The spelling of 56447875 in words is "fifty-six million, four hundred forty-seven thousand, eight hundred seventy-five".