53440608 has 48 divisors (see below), whose sum is σ = 151076016. Its totient is φ = 16442880.

The previous prime is 53440573. The next prime is 53440609. The reversal of 53440608 is 80604435.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53440609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20163 + ... + 22658.

It is an arithmetic number, because the mean of its divisors is an integer number (3147417).

Almost surely, 2^53440608 is an apocalyptic number.

It is an amenable number.

53440608 is an abundant number, since it is smaller than the sum of its proper divisors (97635408).

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

53440608 is a wasteful number, since it uses less digits than its factorization.

53440608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42847 (or 42839 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 53440608 is about 7310.3083382303. The cubic root of 53440608 is about 376.6666158491. Note that the first 4 decimals are identical.

The spelling of 53440608 in words is "fifty-three million, four hundred forty thousand, six hundred eight".