520549542 has 24 divisors (see below), whose sum is σ = 1134165240. Its totient is φ = 172546080.

The previous prime is 520549541. The next prime is 520549553. The reversal of 520549542 is 245945025.

520549542 is a `hidden beast` number, since 520 + 5 + 4 + 95 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 520549497 and 520549506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520549541) 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, 77559 + ... + 84002.

It is an arithmetic number, because the mean of its divisors is an integer number (47256885).

Almost surely, 2^520549542 is an apocalyptic number.

520549542 is an abundant number, since it is smaller than the sum of its proper divisors (613615698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520549542 is a wasteful number, since it uses less digits than its factorization.

520549542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161748 (or 161745 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 520549542 is about 22815.5548256009. The cubic root of 520549542 is about 804.4283286113.

The spelling of 520549542 in words is "five hundred twenty million, five hundred forty-nine thousand, five hundred forty-two".