521014518 has 20 divisors (see below), whose sum is σ = 1167458820. Its totient is φ = 173671452.

The previous prime is 521014517. The next prime is 521014537. The reversal of 521014518 is 815410125.

It is a super-2 number, since 2×521014518² = 542912255933544648, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 521014491 and 521014500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521014517) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1607908 + ... + 1608231.

It is an arithmetic number, because the mean of its divisors is an integer number (58372941).

Almost surely, 2^521014518 is an apocalyptic number.

521014518 is an abundant number, since it is smaller than the sum of its proper divisors (646444302).

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

521014518 is a wasteful number, since it uses less digits than its factorization.

521014518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3216153 (or 3216144 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 521014518 is about 22825.7424413753. The cubic root of 521014518 is about 804.6677733535.

The spelling of 521014518 in words is "five hundred twenty-one million, fourteen thousand, five hundred eighteen".