53451557836 has 24 divisors (see below), whose sum is σ = 96515326656. Its totient is φ = 25887475200.

The previous prime is 53451557821. The next prime is 53451557849. The reversal of 53451557836 is 63875515435.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1447315 + ... + 1483786.

It is an arithmetic number, because the mean of its divisors is an integer number (4021471944).

Almost surely, 2^53451557836 is an apocalyptic number.

It is an amenable number.

53451557836 is a deficient number, since it is larger than the sum of its proper divisors (43063768820).

53451557836 is a wasteful number, since it uses less digits than its factorization.

53451557836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2931249 (or 2931247 counting only the distinct ones).

The product of its digits is 7560000, while the sum is 52.

The spelling of 53451557836 in words is "fifty-three billion, four hundred fifty-one million, five hundred fifty-seven thousand, eight hundred thirty-six".