513451650 has 24 divisors (see below), whose sum is σ = 1273360464. Its totient is φ = 136920400.

The previous prime is 513451643. The next prime is 513451681. The reversal of 513451650 is 56154315.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1711356 + ... + 1711655.

It is an arithmetic number, because the mean of its divisors is an integer number (53056686).

Almost surely, 2^513451650 is an apocalyptic number.

513451650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

513451650 is an abundant number, since it is smaller than the sum of its proper divisors (759908814).

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

513451650 is a wasteful number, since it uses less digits than its factorization.

513451650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3423026 (or 3423021 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 513451650 is about 22659.4715295834. The cubic root of 513451650 is about 800.7553542837.

The spelling of 513451650 in words is "five hundred thirteen million, four hundred fifty-one thousand, six hundred fifty".