225501455121531 has 16 divisors (see below), whose sum is σ = 301789662935040. Its totient is φ = 149773787691680.

The previous prime is 225501455121499. The next prime is 225501455121539. The reversal of 225501455121531 is 135121554105522.

It is a cyclic number.

It is not a de Polignac number, because 225501455121531 - 2⁵ = 225501455121499 is a prime.

It is a super-2 number, since 2×225501455121531² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (225501455121539) 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, 73952806 + ... + 76941668.

It is an arithmetic number, because the mean of its divisors is an integer number (18861853933440).

Almost surely, 2^{225501455121531} is an apocalyptic number.

225501455121531 is a deficient number, since it is larger than the sum of its proper divisors (76288207813509).

225501455121531 is a wasteful number, since it uses less digits than its factorization.

225501455121531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3082626.

The product of its (nonzero) digits is 300000, while the sum is 42.

The spelling of 225501455121531 in words is "two hundred twenty-five trillion, five hundred one billion, four hundred fifty-five million, one hundred twenty-one thousand, five hundred thirty-one".