125920655 has 16 divisors (see below), whose sum is σ = 173268480. Its totient is φ = 86056992.

The previous prime is 125920637. The next prime is 125920681. The reversal of 125920655 is 556029521.

It is not a de Polignac number, because 125920655 - 2⁶ = 125920591 is a prime.

It is a super-2 number, since 2×125920655² = 31712022711258050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4886 + ... + 16604.

It is an arithmetic number, because the mean of its divisors is an integer number (10829280).

Almost surely, 2^125920655 is an apocalyptic number.

125920655 is a deficient number, since it is larger than the sum of its proper divisors (47347825).

125920655 is a wasteful number, since it uses less digits than its factorization.

125920655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12038.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 125920655 is about 11221.4372965320. The cubic root of 125920655 is about 501.2245385624.

The spelling of 125920655 in words is "one hundred twenty-five million, nine hundred twenty thousand, six hundred fifty-five".