53397557432 has 32 divisors (see below), whose sum is σ = 101188018800. Its totient is φ = 26414809344.

The previous prime is 53397557431. The next prime is 53397557449. The reversal of 53397557432 is 23475579335.

It is a happy number.

53397557432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53397557431) 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, 550748 + ... + 640404.

Almost surely, 2^53397557432 is an apocalyptic number.

It is an amenable number.

53397557432 is a deficient number, since it is larger than the sum of its proper divisors (47790461368).

53397557432 is a wasteful number, since it uses less digits than its factorization.

53397557432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90455 (or 90451 counting only the distinct ones).

The product of its digits is 11907000, while the sum is 53.

The spelling of 53397557432 in words is "fifty-three billion, three hundred ninety-seven million, five hundred fifty-seven thousand, four hundred thirty-two".