513478956 has 24 divisors (see below), whose sum is σ = 1250210304. Its totient is φ = 163717840.

The previous prime is 513478951. The next prime is 513478963. The reversal of 513478956 is 659874315.

It is not an unprimeable number, because it can be changed into a prime (513478951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 929940 + ... + 930491.

It is an arithmetic number, because the mean of its divisors is an integer number (52092096).

Almost surely, 2^513478956 is an apocalyptic number.

It is an amenable number.

513478956 is an abundant number, since it is smaller than the sum of its proper divisors (736731348).

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

513478956 is a wasteful number, since it uses less digits than its factorization.

513478956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860461 (or 1860459 counting only the distinct ones).

The product of its digits is 907200, while the sum is 48.

The square root of 513478956 is about 22660.0740510705. The cubic root of 513478956 is about 800.7695490887.

The spelling of 513478956 in words is "five hundred thirteen million, four hundred seventy-eight thousand, nine hundred fifty-six".