53249721154 has 16 divisors (see below), whose sum is σ = 91556120448. Its totient is φ = 22753588032.

The previous prime is 53249721139. The next prime is 53249721193. The reversal of 53249721154 is 45112794235.

It is a self number, because there is not a number n which added to its sum of digits gives 53249721154.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5638534 + ... + 5647969.

It is an arithmetic number, because the mean of its divisors is an integer number (5722257528).

Almost surely, 2^53249721154 is an apocalyptic number.

53249721154 is a deficient number, since it is larger than the sum of its proper divisors (38306399294).

53249721154 is a wasteful number, since it uses less digits than its factorization.

53249721154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11286849.

The product of its digits is 302400, while the sum is 43.

The spelling of 53249721154 in words is "fifty-three billion, two hundred forty-nine million, seven hundred twenty-one thousand, one hundred fifty-four".