125204555 has 12 divisors (see below), whose sum is σ = 174775680. Its totient is φ = 85854384.

The previous prime is 125204543. The next prime is 125204621. The reversal of 125204555 is 555402521.

It is not a de Polignac number, because 125204555 - 2¹⁰ = 125203531 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255275 + ... + 255764.

It is an arithmetic number, because the mean of its divisors is an integer number (14564640).

Almost surely, 2^125204555 is an apocalyptic number.

125204555 is a deficient number, since it is larger than the sum of its proper divisors (49571125).

125204555 is an equidigital number, since it uses as much as digits as its factorization.

125204555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511058 (or 511051 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 125204555 is about 11189.4841257316. The cubic root of 125204555 is about 500.2725913609.

The spelling of 125204555 in words is "one hundred twenty-five million, two hundred four thousand, five hundred fifty-five".