521514480 has 40 divisors (see below), whose sum is σ = 1616695632. Its totient is φ = 139070464.

The previous prime is 521514479. The next prime is 521514493. The reversal of 521514480 is 84415125.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1086249 + ... + 1086728.

Almost surely, 2^521514480 is an apocalyptic number.

It is an amenable number.

521514480 is an abundant number, since it is smaller than the sum of its proper divisors (1095181152).

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

521514480 is a wasteful number, since it uses less digits than its factorization.

521514480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172993 (or 2172987 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 521514480 is about 22836.6915292036. The cubic root of 521514480 is about 804.9250756496.

The spelling of 521514480 in words is "five hundred twenty-one million, five hundred fourteen thousand, four hundred eighty".