1253051551511 has 8 divisors (see below), whose sum is σ = 1253916505248. Its totient is φ = 1252186884000.

The previous prime is 1253051551363. The next prime is 1253051551573. The reversal of 1253051551511 is 1151551503521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1253051551511 - 2¹⁸ = 1253051289367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253051550511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9087221 + ... + 9224081.

It is an arithmetic number, because the mean of its divisors is an integer number (156739563156).

Almost surely, 2^{1253051551511} is an apocalyptic number.

1253051551511 is a deficient number, since it is larger than the sum of its proper divisors (864953737).

1253051551511 is a wasteful number, since it uses less digits than its factorization.

1253051551511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143113.

The product of its (nonzero) digits is 18750, while the sum is 35.

The spelling of 1253051551511 in words is "one trillion, two hundred fifty-three billion, fifty-one million, five hundred fifty-one thousand, five hundred eleven".