52245020 has 12 divisors (see below), whose sum is σ = 109714584. Its totient is φ = 20898000.

The previous prime is 52245007. The next prime is 52245023. The reversal of 52245020 is 2054225.

It is a super-2 number, since 2×52245020² = 5459084229600800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 2612251 = 52245020 / (5 + 2 + 2 + 4 + 5 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 52244983 and 52245001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52245023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1306106 + ... + 1306145.

It is an arithmetic number, because the mean of its divisors is an integer number (9142882).

Almost surely, 2^52245020 is an apocalyptic number.

It is an amenable number.

52245020 is an abundant number, since it is smaller than the sum of its proper divisors (57469564).

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

52245020 is a wasteful number, since it uses less digits than its factorization.

52245020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612260 (or 2612258 counting only the distinct ones).

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

The square root of 52245020 is about 7228.0716653890. The cubic root of 52245020 is about 373.8364408216.

Adding to 52245020 its reverse (2054225), we get a palindrome (54299245).

The spelling of 52245020 in words is "fifty-two million, two hundred forty-five thousand, twenty".