53493237251 has 8 divisors (see below), whose sum is σ = 53670532608. Its totient is φ = 53316208000.

The previous prime is 53493237247. The next prime is 53493237257. The reversal of 53493237251 is 15273239435.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53493237251 - 2² = 53493237247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53493237257) 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, 340286 + ... + 471996.

It is an arithmetic number, because the mean of its divisors is an integer number (6708816576).

Almost surely, 2^53493237251 is an apocalyptic number.

53493237251 is a deficient number, since it is larger than the sum of its proper divisors (177295357).

53493237251 is a wasteful number, since it uses less digits than its factorization.

53493237251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133053.

The product of its digits is 680400, while the sum is 44.

The spelling of 53493237251 in words is "fifty-three billion, four hundred ninety-three million, two hundred thirty-seven thousand, two hundred fifty-one".