52921420 has 12 divisors (see below), whose sum is σ = 111135024. Its totient is φ = 21168560.

The previous prime is 52921411. The next prime is 52921439. The reversal of 52921420 is 2412925.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1323016 + ... + 1323055.

It is an arithmetic number, because the mean of its divisors is an integer number (9261252).

Almost surely, 2^52921420 is an apocalyptic number.

It is an amenable number.

52921420 is an abundant number, since it is smaller than the sum of its proper divisors (58213604).

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

52921420 is a wasteful number, since it uses less digits than its factorization.

52921420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2646080 (or 2646078 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 52921420 is about 7274.7109908229. The cubic root of 52921420 is about 375.4428427608.

It can be divided in two parts, 529 and 21420, that multiplied together give a triangular number (11331180 = T₄₇₆₀).

The spelling of 52921420 in words is "fifty-two million, nine hundred twenty-one thousand, four hundred twenty".