125513855293 has 8 divisors (see below), whose sum is σ = 127568426040. Its totient is φ = 123473602560.

The previous prime is 125513855279. The next prime is 125513855317. The reversal of 125513855293 is 392558315521.

It can be written as a sum of positive squares in 4 ways, for example, as 30685579929 + 94828275364 = 175173^2 + 307942^2 .

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 125513855293 - 2²⁵ = 125480300861 is a prime.

It is a super-3 number, since 3×125513855293³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125513855993) 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, 3561828 + ... + 3596893.

It is an arithmetic number, because the mean of its divisors is an integer number (15946053255).

Almost surely, 2^125513855293 is an apocalyptic number.

It is an amenable number.

125513855293 is a deficient number, since it is larger than the sum of its proper divisors (2054570747).

125513855293 is an equidigital number, since it uses as much as digits as its factorization.

125513855293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7159007.

The product of its digits is 1620000, while the sum is 49.

The spelling of 125513855293 in words is "one hundred twenty-five billion, five hundred thirteen million, eight hundred fifty-five thousand, two hundred ninety-three".