475515994 has 4 divisors (see below), whose sum is σ = 713273994. Its totient is φ = 237757996.

The previous prime is 475515919. The next prime is 475516001. The reversal of 475515994 is 499515574.

It is a happy number.

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., 443649969 + 31866025 = 21063^2 + 5645^2 .

It is a super-2 number, since 2×475515994² = 452230921099616072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118878997 + ... + 118879000.

Almost surely, 2^475515994 is an apocalyptic number.

475515994 is a deficient number, since it is larger than the sum of its proper divisors (237758000).

475515994 is a wasteful number, since it uses less digits than its factorization.

475515994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237757999.

The product of its digits is 1134000, while the sum is 49.

The square root of 475515994 is about 21806.3292188300. The cubic root of 475515994 is about 780.5278007838.

The spelling of 475515994 in words is "four hundred seventy-five million, five hundred fifteen thousand, nine hundred ninety-four".