52501900 has 54 divisors (see below), whose sum is σ = 125256740. Its totient is φ = 19087200.

The previous prime is 52501859. The next prime is 52501903. The reversal of 52501900 is 910525.

It is a super-2 number, since 2×52501900² = 5512899007220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (52501903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 9931 + ... + 14269.

Almost surely, 2^52501900 is an apocalyptic number.

52501900 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 52501900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62628370).

52501900 is an abundant number, since it is smaller than the sum of its proper divisors (72754840).

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

52501900 is a wasteful number, since it uses less digits than its factorization.

52501900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4375 (or 4357 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 52501900 is about 7245.8194843648. The cubic root of 52501900 is about 374.4481364041.

The spelling of 52501900 in words is "fifty-two million, five hundred one thousand, nine hundred".