509225516 has 12 divisors (see below), whose sum is σ = 903352632. Its totient is φ = 251124768.

The previous prime is 509225477. The next prime is 509225533. The reversal of 509225516 is 615522905.

It is a super-2 number, since 2×509225516² = 518621252290932512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 871670 + ... + 872253.

It is an arithmetic number, because the mean of its divisors is an integer number (75279386).

Almost surely, 2^509225516 is an apocalyptic number.

It is an amenable number.

509225516 is a deficient number, since it is larger than the sum of its proper divisors (394127116).

509225516 is a wasteful number, since it uses less digits than its factorization.

509225516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1744000 (or 1743998 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 509225516 is about 22566.0257023695. The cubic root of 509225516 is about 798.5523381742.

The spelling of 509225516 in words is "five hundred nine million, two hundred twenty-five thousand, five hundred sixteen".