125501655 has 8 divisors (see below), whose sum is σ = 200802672. Its totient is φ = 66934208.

The previous prime is 125501641. The next prime is 125501683. The reversal of 125501655 is 556105521.

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 125501655 - 2⁶ = 125501591 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4183374 + ... + 4183403.

It is an arithmetic number, because the mean of its divisors is an integer number (25100334).

Almost surely, 2^125501655 is an apocalyptic number.

125501655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125501655 is a deficient number, since it is larger than the sum of its proper divisors (75301017).

125501655 is an equidigital number, since it uses as much as digits as its factorization.

125501655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8366785.

The product of its (nonzero) digits is 7500, while the sum is 30.

The square root of 125501655 is about 11202.7521172255. The cubic root of 125501655 is about 500.6679805399.

The spelling of 125501655 in words is "one hundred twenty-five million, five hundred one thousand, six hundred fifty-five".