515064630 has 32 divisors (see below), whose sum is σ = 1237490784. Its totient is φ = 137202176.

The previous prime is 515064619. The next prime is 515064637. The reversal of 515064630 is 36460515.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515064637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20524 + ... + 38096.

It is an arithmetic number, because the mean of its divisors is an integer number (38671587).

Almost surely, 2^515064630 is an apocalyptic number.

515064630 is an abundant number, since it is smaller than the sum of its proper divisors (722426154).

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

515064630 is a wasteful number, since it uses less digits than its factorization.

515064630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18560.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 515064630 is about 22695.0353601840. The cubic root of 515064630 is about 801.5929873421.

The spelling of 515064630 in words is "five hundred fifteen million, sixty-four thousand, six hundred thirty".