53145460 has 48 divisors (see below), whose sum is σ = 114685200. Its totient is φ = 20680704.

The previous prime is 53145437. The next prime is 53145503. The reversal of 53145460 is 6454135.

It can be written as a sum of positive squares in 8 ways, for example, as 88804 + 53056656 = 298^2 + 7284^2 .

It is a super-2 number, since 2×53145460² = 5648879837223200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129736 + ... + 130144.

It is an arithmetic number, because the mean of its divisors is an integer number (2389275).

Almost surely, 2^53145460 is an apocalyptic number.

It is an amenable number.

53145460 is an abundant number, since it is smaller than the sum of its proper divisors (61539740).

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

53145460 is a wasteful number, since it uses less digits than its factorization.

53145460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580 (or 578 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 53145460 is about 7290.0932778669. The cubic root of 53145460 is about 375.9719026084.

Adding to 53145460 its reverse (6454135), we get a palindrome (59599595).

The spelling of 53145460 in words is "fifty-three million, one hundred forty-five thousand, four hundred sixty".