52879420 has 36 divisors (see below), whose sum is σ = 122065272. Its totient is φ = 19228000.

The previous prime is 52879403. The next prime is 52879427. The reversal of 52879420 is 2497825.

It is a self number, because there is not a number n which added to its sum of digits gives 52879420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52879427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8506 + ... + 13345.

It is an arithmetic number, because the mean of its divisors is an integer number (3390702).

Almost surely, 2^52879420 is an apocalyptic number.

It is an amenable number.

52879420 is an abundant number, since it is smaller than the sum of its proper divisors (69185852).

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

52879420 is a wasteful number, since it uses less digits than its factorization.

52879420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21882 (or 21869 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 52879420 is about 7271.8237052338. The cubic root of 52879420 is about 375.3434956363.

The spelling of 52879420 in words is "fifty-two million, eight hundred seventy-nine thousand, four hundred twenty".