52373421 has 6 divisors (see below), whose sum is σ = 75650510. Its totient is φ = 34915608.

The previous prime is 52373411. The next prime is 52373429. The reversal of 52373421 is 12437325.

52373421 is a `hidden beast` number, since 5 + 237 + 3 + 421 = 666.

It can be written as a sum of positive squares in only one way, i.e., 51194025 + 1179396 = 7155^2 + 1086^2 .

It is not a de Polignac number, because 52373421 - 2⁶ = 52373357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52373429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2909626 + ... + 2909643.

Almost surely, 2^52373421 is an apocalyptic number.

It is an amenable number.

52373421 is a deficient number, since it is larger than the sum of its proper divisors (23277089).

52373421 is a wasteful number, since it uses less digits than its factorization.

52373421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5819275 (or 5819272 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 52373421 is about 7236.9483209430. The cubic root of 52373421 is about 374.1424457635.

The spelling of 52373421 in words is "fifty-two million, three hundred seventy-three thousand, four hundred twenty-one".