125255505 has 16 divisors (see below), whose sum is σ = 210957120. Its totient is φ = 63286848.

The previous prime is 125255503. The next prime is 125255521. The reversal of 125255505 is 505552521.

It is not a de Polignac number, because 125255505 - 2¹ = 125255503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125255503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219462 + ... + 220031.

It is an arithmetic number, because the mean of its divisors is an integer number (13184820).

Almost surely, 2^125255505 is an apocalyptic number.

125255505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125255505 is a deficient number, since it is larger than the sum of its proper divisors (85701615).

125255505 is a wasteful number, since it uses less digits than its factorization.

125255505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439520.

The product of its (nonzero) digits is 12500, while the sum is 30.

The square root of 125255505 is about 11191.7605853592. The cubic root of 125255505 is about 500.3404414799.

The spelling of 125255505 in words is "one hundred twenty-five million, two hundred fifty-five thousand, five hundred five".