815053000 has 32 divisors (see below), whose sum is σ = 1907226360. Its totient is φ = 326020800.

The previous prime is 815052989. The next prime is 815053007. The reversal of 815053000 is 350518.

It can be written as a sum of positive squares in 4 ways, for example, as 469762276 + 345290724 = 21674^2 + 18582^2 .

It is a super-2 number, since 2×815053000² = 1328622785618000000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (815053007) 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, 406527 + ... + 408526.

Almost surely, 2^815053000 is an apocalyptic number.

It is an amenable number.

815053000 is an abundant number, since it is smaller than the sum of its proper divisors (1092173360).

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

815053000 is a wasteful number, since it uses less digits than its factorization.

815053000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815074 (or 815060 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 815053000 is about 28549.1330866631. The cubic root of 815053000 is about 934.1041110234.

The spelling of 815053000 in words is "eight hundred fifteen million, fifty-three thousand".