53268640 has 36 divisors (see below), whose sum is σ = 126065646. Its totient is φ = 21270528.

The previous prime is 53268637. The next prime is 53268659. The reversal of 53268640 is 4686235.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 50296464 + 2972176 = 7092^2 + 1724^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53268596 and 53268605.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 92032 + ... + 92608.

Almost surely, 2^53268640 is an apocalyptic number.

It is an amenable number.

53268640 is an abundant number, since it is smaller than the sum of its proper divisors (72797006).

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

53268640 is an frugal number, since it uses more digits than its factorization.

53268640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169 (or 584 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 53268640 is about 7298.5368396686. The cubic root of 53268640 is about 376.2621530789.

The spelling of 53268640 in words is "fifty-three million, two hundred sixty-eight thousand, six hundred forty".