513352078 has 4 divisors (see below), whose sum is σ = 770028120. Its totient is φ = 256676038.

The previous prime is 513352003. The next prime is 513352079. The reversal of 513352078 is 870253315.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513352079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128338018 + ... + 128338021.

It is an arithmetic number, because the mean of its divisors is an integer number (192507030).

Almost surely, 2^513352078 is an apocalyptic number.

513352078 is a deficient number, since it is larger than the sum of its proper divisors (256676042).

513352078 is a wasteful number, since it uses less digits than its factorization.

513352078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256676041.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 513352078 is about 22657.2742844324. The cubic root of 513352078 is about 800.7035883146.

The spelling of 513352078 in words is "five hundred thirteen million, three hundred fifty-two thousand, seventy-eight".