52900000 has 108 divisors (see below), whose sum is σ = 136081134. Its totient is φ = 20240000.

The previous prime is 52899997. The next prime is 52900033. The reversal of 52900000 is 925.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 3 ways, for example, as 76176 + 52823824 = 276^2 + 7268^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2299989 + ... + 2300011.

Almost surely, 2^52900000 is an apocalyptic number.

52900000 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 52900000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68040567).

52900000 is an abundant number, since it is smaller than the sum of its proper divisors (83181134).

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

52900000 is an frugal number, since it uses more digits than its factorization.

52900000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 52900000 is about 7273.2386183873. The cubic root of 52900000 is about 375.3921822977.

Multiplying 52900000 by its product of nonzero digits (90), we get a square (4761000000 = 69000²).

Adding to 52900000 its reverse (925), we get a palindrome (52900925).

The spelling of 52900000 in words is "fifty-two million, nine hundred thousand".