515379002 has 4 divisors (see below), whose sum is σ = 773068506. Its totient is φ = 257689500.

The previous prime is 515378993. The next prime is 515379023. The reversal of 515379002 is 200973515.

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

It can be written as a sum of positive squares in only one way, i.e., 339259561 + 176119441 = 18419^2 + 13271^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 515379002.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128844749 + ... + 128844752.

Almost surely, 2^515379002 is an apocalyptic number.

515379002 is a deficient number, since it is larger than the sum of its proper divisors (257689504).

515379002 is a wasteful number, since it uses less digits than its factorization.

515379002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257689503.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 515379002 is about 22701.9603118321. The cubic root of 515379002 is about 801.7560394614.

The spelling of 515379002 in words is "five hundred fifteen million, three hundred seventy-nine thousand, two".