52172407 has 6 divisors (see below), whose sum is σ = 60690408. Its totient is φ = 44719164.

The previous prime is 52172387. The next prime is 52172413. The reversal of 52172407 is 70427125.

It is not a de Polignac number, because 52172407 - 2¹⁵ = 52139639 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 (52172447) 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, 532323 + ... + 532420.

It is an arithmetic number, because the mean of its divisors is an integer number (10115068).

Almost surely, 2^52172407 is an apocalyptic number.

52172407 is a deficient number, since it is larger than the sum of its proper divisors (8518001).

52172407 is a wasteful number, since it uses less digits than its factorization.

52172407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064757 (or 1064750 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 52172407 is about 7223.0469332547. The cubic root of 52172407 is about 373.6631677119.

The spelling of 52172407 in words is "fifty-two million, one hundred seventy-two thousand, four hundred seven".