53240852440 has 32 divisors (see below), whose sum is σ = 120954955680. Its totient is φ = 21089578752.

The previous prime is 53240852429. The next prime is 53240852491. The reversal of 53240852440 is 4425804235.

It is a self number, because there is not a number n which added to its sum of digits gives 53240852440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6457149 + ... + 6465388.

It is an arithmetic number, because the mean of its divisors is an integer number (3779842365).

Almost surely, 2^53240852440 is an apocalyptic number.

It is an amenable number.

53240852440 is an abundant number, since it is smaller than the sum of its proper divisors (67714103240).

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

53240852440 is a wasteful number, since it uses less digits than its factorization.

53240852440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12922651 (or 12922647 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 37.

The spelling of 53240852440 in words is "fifty-three billion, two hundred forty million, eight hundred fifty-two thousand, four hundred forty".