125500515553 has 8 divisors (see below), whose sum is σ = 143477460800. Its totient is φ = 107535645360.

The previous prime is 125500515551. The next prime is 125500515557. The reversal of 125500515553 is 355515005521.

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 125500515553 - 2¹ = 125500515551 is a prime.

It is a super-3 number, since 3×125500515553³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125500515551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2996478 + ... + 3038071.

It is an arithmetic number, because the mean of its divisors is an integer number (17934682600).

Almost surely, 2^125500515553 is an apocalyptic number.

It is an amenable number.

125500515553 is a deficient number, since it is larger than the sum of its proper divisors (17976945247).

125500515553 is an equidigital number, since it uses as much as digits as its factorization.

125500515553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6037527.

The product of its (nonzero) digits is 93750, while the sum is 37.

The spelling of 125500515553 in words is "one hundred twenty-five billion, five hundred million, five hundred fifteen thousand, five hundred fifty-three".