53311040 has 28 divisors (see below), whose sum is σ = 126947676. Its totient is φ = 21324288.

The previous prime is 53311021. The next prime is 53311081. The reversal of 53311040 is 4011335.

It can be written as a sum of positive squares in 2 ways, for example, as 32444416 + 20866624 = 5696^2 + 4568^2 .

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, 82979 + ... + 83618.

Almost surely, 2^53311040 is an apocalyptic number.

It is an amenable number.

53311040 is an abundant number, since it is smaller than the sum of its proper divisors (73636636).

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

53311040 is a wasteful number, since it uses less digits than its factorization.

53311040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166614 (or 166604 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 53311040 is about 7301.4409536748. The cubic root of 53311040 is about 376.3619571684.

Adding to 53311040 its reverse (4011335), we get a palindrome (57322375).

The spelling of 53311040 in words is "fifty-three million, three hundred eleven thousand, forty".