2153223550251 has 24 divisors (see below), whose sum is σ = 3126348482400. Its totient is φ = 1428036293376.

The previous prime is 2153223550213. The next prime is 2153223550349. The reversal of 2153223550251 is 1520553223512.

2153223550251 is a `hidden beast` number, since 2 + 1 + 5 + 32 + 23 + 550 + 2 + 51 = 666.

It is not a de Polignac number, because 2153223550251 - 2¹⁰ = 2153223549227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2153223550201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17044746 + ... + 17170608.

It is an arithmetic number, because the mean of its divisors is an integer number (130264520100).

Almost surely, 2^{2153223550251} is an apocalyptic number.

2153223550251 is a deficient number, since it is larger than the sum of its proper divisors (973124932149).

2153223550251 is a wasteful number, since it uses less digits than its factorization.

2153223550251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135715 (or 135712 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

Adding to 2153223550251 its reverse (1520553223512), we get a palindrome (3673776773763).

The spelling of 2153223550251 in words is "two trillion, one hundred fifty-three billion, two hundred twenty-three million, five hundred fifty thousand, two hundred fifty-one".