155313513102553 has 32 divisors (see below), whose sum is σ = 172685150870400. Its totient is φ = 138792019677696.

The previous prime is 155313513102551. The next prime is 155313513102617. The reversal of 155313513102553 is 355201315313551.

It is a cyclic number.

It is not a de Polignac number, because 155313513102553 - 2¹ = 155313513102551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155313513102551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 174947893 + ... + 175833421.

It is an arithmetic number, because the mean of its divisors is an integer number (5396410964700).

Almost surely, 2^{155313513102553} is an apocalyptic number.

155313513102553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

155313513102553 is a deficient number, since it is larger than the sum of its proper divisors (17371637767847).

155313513102553 is a wasteful number, since it uses less digits than its factorization.

155313513102553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889081.

The product of its (nonzero) digits is 506250, while the sum is 43.

The spelling of 155313513102553 in words is "one hundred fifty-five trillion, three hundred thirteen billion, five hundred thirteen million, one hundred two thousand, five hundred fifty-three".