125003655 has 60 divisors (see below), whose sum is σ = 260706600. Its totient is φ = 57135456.

The previous prime is 125003639. The next prime is 125003677. The reversal of 125003655 is 556300521.

125003655 is a `hidden beast` number, since 1 + 2 + 5 + 0 + 0 + 3 + 655 = 666.

It is not a de Polignac number, because 125003655 - 2⁴ = 125003639 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 16696 + ... + 22994.

It is an arithmetic number, because the mean of its divisors is an integer number (4345110).

Almost surely, 2^125003655 is an apocalyptic number.

125003655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125003655 is an abundant number, since it is smaller than the sum of its proper divisors (135702945).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125003655 is an equidigital number, since it uses as much as digits as its factorization.

125003655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6330 (or 6314 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 125003655 is about 11180.5033428733. The cubic root of 125003655 is about 500.0048732858.

The spelling of 125003655 in words is "one hundred twenty-five million, three thousand, six hundred fifty-five".