53215460 has 12 divisors (see below), whose sum is σ = 111752508. Its totient is φ = 21286176.

The previous prime is 53215453. The next prime is 53215489. The reversal of 53215460 is 6451235.

It can be written as a sum of positive squares in 2 ways, for example, as 36699364 + 16516096 = 6058^2 + 4064^2 .

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, 1330367 + ... + 1330406.

It is an arithmetic number, because the mean of its divisors is an integer number (9312709).

Almost surely, 2^53215460 is an apocalyptic number.

It is an amenable number.

53215460 is an abundant number, since it is smaller than the sum of its proper divisors (58537048).

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

53215460 is a wasteful number, since it uses less digits than its factorization.

53215460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2660782 (or 2660780 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 53215460 is about 7294.8927339612. The cubic root of 53215460 is about 376.1368993726.

Adding to 53215460 its reverse (6451235), we get a palindrome (59666695).

The spelling of 53215460 in words is "fifty-three million, two hundred fifteen thousand, four hundred sixty".