253401401551331 has 16 divisors (see below), whose sum is σ = 286103678376960. Its totient is φ = 222317502613920.

The previous prime is 253401401551313. The next prime is 253401401551369. The reversal of 253401401551331 is 133155104104352.

It is a cyclic number.

It is not a de Polignac number, because 253401401551331 - 2³⁸ = 253126523644387 is a prime.

It is a super-2 number, since 2×253401401551331² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253401401551381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184655105 + ... + 186022338.

It is an arithmetic number, because the mean of its divisors is an integer number (17881479898560).

Almost surely, 2^{253401401551331} is an apocalyptic number.

253401401551331 is a deficient number, since it is larger than the sum of its proper divisors (32702276825629).

253401401551331 is a wasteful number, since it uses less digits than its factorization.

253401401551331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370679626.

The product of its (nonzero) digits is 108000, while the sum is 38.

Adding to 253401401551331 its reverse (133155104104352), we get a palindrome (386556505655683).

The spelling of 253401401551331 in words is "two hundred fifty-three trillion, four hundred one billion, four hundred one million, five hundred fifty-one thousand, three hundred thirty-one".