53292421 has 16 divisors (see below), whose sum is σ = 65863168. Its totient is φ = 41990400.

The previous prime is 53292377. The next prime is 53292427. The reversal of 53292421 is 12429235.

53292421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a 4-Lehmer number, since φ(53292421) divides (53292421-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 53292421 - 2⁷ = 53292293 is a prime.

It is a deceptive number, since it divides R_53292420.

It is a self number, because there is not a number n which added to its sum of digits gives 53292421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53292427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23581 + ... + 25741.

It is an arithmetic number, because the mean of its divisors is an integer number (4116448).

Almost surely, 2^53292421 is an apocalyptic number.

It is an amenable number.

53292421 is a deficient number, since it is larger than the sum of its proper divisors (12570747).

53292421 is a wasteful number, since it uses less digits than its factorization.

53292421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2452.

The product of its digits is 4320, while the sum is 28.

The square root of 53292421 is about 7300.1658200345. The cubic root of 53292421 is about 376.3181369814.

It can be divided in two parts, 5329 and 2421, that added together give a triangular number (7750 = T₁₂₄).

The spelling of 53292421 in words is "fifty-three million, two hundred ninety-two thousand, four hundred twenty-one".