52140300 has 72 divisors (see below), whose sum is σ = 151990272. Its totient is φ = 13800000.

The previous prime is 52140293. The next prime is 52140317. The reversal of 52140300 is 304125.

It is a super-2 number, since 2×52140300² = 5437221768180000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 52140300.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44725 + ... + 45875.

It is an arithmetic number, because the mean of its divisors is an integer number (2110976).

Almost surely, 2^52140300 is an apocalyptic number.

52140300 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 52140300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75995136).

52140300 is an abundant number, since it is smaller than the sum of its proper divisors (99849972).

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

52140300 is a wasteful number, since it uses less digits than its factorization.

52140300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319 (or 1312 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 52140300 is about 7220.8240526965. The cubic root of 52140300 is about 373.5865009711.

Adding to 52140300 its reverse (304125), we get a palindrome (52444425).

The spelling of 52140300 in words is "fifty-two million, one hundred forty thousand, three hundred".