52670421 has 12 divisors (see below), whose sum is σ = 77369760. Its totient is φ = 34518120.

The previous prime is 52670419. The next prime is 52670441. The reversal of 52670421 is 12407625.

It is not a de Polignac number, because 52670421 - 2¹ = 52670419 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52670411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49065 + ... + 50126.

It is an arithmetic number, because the mean of its divisors is an integer number (6447480).

Almost surely, 2^52670421 is an apocalyptic number.

It is an amenable number.

52670421 is a deficient number, since it is larger than the sum of its proper divisors (24699339).

52670421 is a wasteful number, since it uses less digits than its factorization.

52670421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99256 (or 99253 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 52670421 is about 7257.4390111113. The cubic root of 52670421 is about 374.8483440095.

The spelling of 52670421 in words is "fifty-two million, six hundred seventy thousand, four hundred twenty-one".