52421933 has 4 divisors (see below), whose sum is σ = 53838780. Its totient is φ = 51005088.

The previous prime is 52421911. The next prime is 52421959. The reversal of 52421933 is 33912425.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39904489 + 12517444 = 6317^2 + 3538^2 .

It is a cyclic number.

It is not a de Polignac number, because 52421933 - 2⁶ = 52421869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52421896 and 52421905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52421233) 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, 708368 + ... + 708441.

It is an arithmetic number, because the mean of its divisors is an integer number (13459695).

Almost surely, 2^52421933 is an apocalyptic number.

It is an amenable number.

52421933 is a deficient number, since it is larger than the sum of its proper divisors (1416847).

52421933 is a wasteful number, since it uses less digits than its factorization.

52421933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416846.

The product of its digits is 6480, while the sum is 29.

The square root of 52421933 is about 7240.2992341477. The cubic root of 52421933 is about 374.2579292587.

The spelling of 52421933 in words is "fifty-two million, four hundred twenty-one thousand, nine hundred thirty-three".