52691982 has 32 divisors (see below), whose sum is σ = 123005952. Its totient is φ = 14733984.

The previous prime is 52691953. The next prime is 52691987. The reversal of 52691982 is 28919625.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52691987) 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, 11373 + ... + 15320.

It is an arithmetic number, because the mean of its divisors is an integer number (3843936).

Almost surely, 2^52691982 is an apocalyptic number.

52691982 is an abundant number, since it is smaller than the sum of its proper divisors (70313970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52691982 is a wasteful number, since it uses less digits than its factorization.

52691982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26752.

The product of its digits is 77760, while the sum is 42.

The square root of 52691982 is about 7258.9243004732. The cubic root of 52691982 is about 374.8994859498.

The spelling of 52691982 in words is "fifty-two million, six hundred ninety-one thousand, nine hundred eighty-two".