53040232251 has 6 divisors (see below), whose sum is σ = 76613668820. Its totient is φ = 35360154828.

The previous prime is 53040232229. The next prime is 53040232261. The reversal of 53040232251 is 15223204035.

It is a happy number.

53040232251 is a `hidden beast` number, since 5 + 3 + 0 + 402 + 3 + 2 + 251 = 666.

It is not a de Polignac number, because 53040232251 - 2⁶ = 53040232187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53040232261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2946679561 + ... + 2946679578.

Almost surely, 2^53040232251 is an apocalyptic number.

53040232251 is a deficient number, since it is larger than the sum of its proper divisors (23573436569).

53040232251 is a wasteful number, since it uses less digits than its factorization.

53040232251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5893359145 (or 5893359142 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 53040232251 its reverse (15223204035), we get a palindrome (68263436286).

The spelling of 53040232251 in words is "fifty-three billion, forty million, two hundred thirty-two thousand, two hundred fifty-one".