1253015325961 has 16 divisors (see below), whose sum is σ = 1459908481024. Its totient is φ = 1053238683024.

The previous prime is 1253015325929. The next prime is 1253015326001. The reversal of 1253015325961 is 1695235103521.

It is a cyclic number.

It is not a de Polignac number, because 1253015325961 - 2⁵ = 1253015325929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1253015325901) 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, 5885715 + ... + 6094888.

It is an arithmetic number, because the mean of its divisors is an integer number (91244280064).

Almost surely, 2^{1253015325961} is an apocalyptic number.

It is an amenable number.

1253015325961 is a deficient number, since it is larger than the sum of its proper divisors (206893155063).

1253015325961 is a wasteful number, since it uses less digits than its factorization.

1253015325961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11980900.

The product of its (nonzero) digits is 243000, while the sum is 43.

The spelling of 1253015325961 in words is "one trillion, two hundred fifty-three billion, fifteen million, three hundred twenty-five thousand, nine hundred sixty-one".