520351432 has 8 divisors (see below), whose sum is σ = 975658950. Its totient is φ = 260175712.

The previous prime is 520351417. The next prime is 520351439. The reversal of 520351432 is 234153025.

It can be written as a sum of positive squares in only one way, i.e., 519566436 + 784996 = 22794^2 + 886^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×520351432² = 541531225568901248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 520351397 and 520351406.

It is not an unprimeable number, because it can be changed into a prime (520351439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32521957 + ... + 32521972.

Almost surely, 2^520351432 is an apocalyptic number.

It is an amenable number.

520351432 is a deficient number, since it is larger than the sum of its proper divisors (455307518).

520351432 is a wasteful number, since it uses less digits than its factorization.

520351432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65043935 (or 65043931 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 520351432 is about 22811.2128568386. The cubic root of 520351432 is about 804.3262662685.

The spelling of 520351432 in words is "five hundred twenty million, three hundred fifty-one thousand, four hundred thirty-two".