520153407 has 12 divisors (see below), whose sum is σ = 779160200. Its totient is φ = 346768776.

The previous prime is 520153373. The next prime is 520153427. The reversal of 520153407 is 704351025.

It is a happy number.

520153407 is a `hidden beast` number, since 5 + 201 + 53 + 407 = 666.

It is not a de Polignac number, because 520153407 - 2⁶ = 520153343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520153427) 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, 1070032 + ... + 1070517.

Almost surely, 2^520153407 is an apocalyptic number.

520153407 is a deficient number, since it is larger than the sum of its proper divisors (259006793).

520153407 is an equidigital number, since it uses as much as digits as its factorization.

520153407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2140564 (or 2140552 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 520153407 is about 22806.8719249265. The cubic root of 520153407 is about 804.2242218243.

The spelling of 520153407 in words is "five hundred twenty million, one hundred fifty-three thousand, four hundred seven".