52977793 has 16 divisors (see below), whose sum is σ = 59450112. Its totient is φ = 47190000.

The previous prime is 52977787. The next prime is 52977803. The reversal of 52977793 is 39777925.

It is a de Polignac number, because none of the positive numbers 2^k-52977793 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52977703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70168 + ... + 70918.

It is an arithmetic number, because the mean of its divisors is an integer number (3715632).

Almost surely, 2^52977793 is an apocalyptic number.

52977793 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

52977793 is a deficient number, since it is larger than the sum of its proper divisors (6472319).

52977793 is an equidigital number, since it uses as much as digits as its factorization.

52977793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837 (or 815 counting only the distinct ones).

The product of its digits is 833490, while the sum is 49.

The square root of 52977793 is about 7278.5845464623. The cubic root of 52977793 is about 375.5761053021.

The spelling of 52977793 in words is "fifty-two million, nine hundred seventy-seven thousand, seven hundred ninety-three".