52242500 has 30 divisors (see below), whose sum is σ = 114249366. Its totient is φ = 20896000.

The previous prime is 52242481. The next prime is 52242539. The reversal of 52242500 is 524225.

It can be written as a sum of positive squares in 5 ways, for example, as 18113536 + 34128964 = 4256^2 + 5842^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7949 + ... + 12948.

Almost surely, 2^52242500 is an apocalyptic number.

52242500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

52242500 is an abundant number, since it is smaller than the sum of its proper divisors (62006866).

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

52242500 is a wasteful number, since it uses less digits than its factorization.

52242500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20921 (or 20904 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 52242500 is about 7227.8973429345. The cubic root of 52242500 is about 373.8304301499.

Adding to 52242500 its reverse (524225), we get a palindrome (52766725).

The spelling of 52242500 in words is "fifty-two million, two hundred forty-two thousand, five hundred".