125387855 has 4 divisors (see below), whose sum is σ = 150465432. Its totient is φ = 100310280.

The previous prime is 125387849. The next prime is 125387863. The reversal of 125387855 is 558783521.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 125387855 - 2⁶ = 125387791 is a prime.

It is a super-2 number, since 2×125387855² = 31444228363002050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12538781 + ... + 12538790.

It is an arithmetic number, because the mean of its divisors is an integer number (37616358).

Almost surely, 2^125387855 is an apocalyptic number.

125387855 is a deficient number, since it is larger than the sum of its proper divisors (25077577).

125387855 is an equidigital number, since it uses as much as digits as its factorization.

125387855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25077576.

The product of its digits is 336000, while the sum is 44.

The square root of 125387855 is about 11197.6718562387. The cubic root of 125387855 is about 500.5166060525.

The spelling of 125387855 in words is "one hundred twenty-five million, three hundred eighty-seven thousand, eight hundred fifty-five".