515055000 has 80 divisors (see below), whose sum is σ = 1609078680. Its totient is φ = 137344000.

The previous prime is 515054861. The next prime is 515055019. The reversal of 515055000 is 550515.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2169 + ... + 32168.

Almost surely, 2^515055000 is an apocalyptic number.

515055000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 515055000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (804539340).

515055000 is an abundant number, since it is smaller than the sum of its proper divisors (1094023680).

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

515055000 is a wasteful number, since it uses less digits than its factorization.

515055000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34366 (or 34347 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 21.

The square root of 515055000 is about 22694.8231982538. The cubic root of 515055000 is about 801.5879916010.

The spelling of 515055000 in words is "five hundred fifteen million, fifty-five thousand".