52987420 has 12 divisors (see below), whose sum is σ = 111273624. Its totient is φ = 21194960.

The previous prime is 52987397. The next prime is 52987421. The reversal of 52987420 is 2478925.

It is a self number, because there is not a number n which added to its sum of digits gives 52987420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52987421) 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, 1324666 + ... + 1324705.

It is an arithmetic number, because the mean of its divisors is an integer number (9272802).

Almost surely, 2^52987420 is an apocalyptic number.

It is an amenable number.

52987420 is an abundant number, since it is smaller than the sum of its proper divisors (58286204).

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

52987420 is a wasteful number, since it uses less digits than its factorization.

52987420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2649380 (or 2649378 counting only the distinct ones).

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

The square root of 52987420 is about 7279.2458400579. The cubic root of 52987420 is about 375.5988535265.

The spelling of 52987420 in words is "fifty-two million, nine hundred eighty-seven thousand, four hundred twenty".