52141520 has 20 divisors (see below), whose sum is σ = 121229220. Its totient is φ = 20856576.

The previous prime is 52141493. The next prime is 52141549. The reversal of 52141520 is 2514125.

It can be written as a sum of positive squares in 2 ways, for example, as 31091776 + 21049744 = 5576^2 + 4588^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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

It is a junction number, because it is equal to n+sod(n) for n = 52141492 and 52141501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325805 + ... + 325964.

It is an arithmetic number, because the mean of its divisors is an integer number (6061461).

Almost surely, 2^52141520 is an apocalyptic number.

It is an amenable number.

52141520 is an abundant number, since it is smaller than the sum of its proper divisors (69087700).

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

52141520 is a wasteful number, since it uses less digits than its factorization.

52141520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651782 (or 651776 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 52141520 is about 7220.9085300951. The cubic root of 52141520 is about 373.5894147248.

Adding to 52141520 its reverse (2514125), we get a palindrome (54655645).

The spelling of 52141520 in words is "fifty-two million, one hundred forty-one thousand, five hundred twenty".