53511533144 has 32 divisors (see below), whose sum is σ = 101375339520. Its totient is φ = 26478454176.

The previous prime is 53511533143. The next prime is 53511533147. The reversal of 53511533144 is 44133511535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53511533143) 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, 1270487 + ... + 1311929.

It is an arithmetic number, because the mean of its divisors is an integer number (3167979360).

Almost surely, 2^53511533144 is an apocalyptic number.

It is an amenable number.

53511533144 is a deficient number, since it is larger than the sum of its proper divisors (47863806376).

53511533144 is a wasteful number, since it uses less digits than its factorization.

53511533144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43119 (or 43115 counting only the distinct ones).

The product of its digits is 54000, while the sum is 35.

The spelling of 53511533144 in words is "fifty-three billion, five hundred eleven million, five hundred thirty-three thousand, one hundred forty-four".