125022555 has 32 divisors (see below), whose sum is σ = 254016000. Its totient is φ = 57152736.

The previous prime is 125022553. The next prime is 125022559. The reversal of 125022555 is 555220521.

It is not a de Polignac number, because 125022555 - 2¹ = 125022553 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (125022553) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 65205 + ... + 67094.

It is an arithmetic number, because the mean of its divisors is an integer number (7938000).

Almost surely, 2^125022555 is an apocalyptic number.

125022555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125022555 is an abundant number, since it is smaller than the sum of its proper divisors (128993445).

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

125022555 is a wasteful number, since it uses less digits than its factorization.

125022555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132320 (or 132314 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 125022555 is about 11181.3485322657. The cubic root of 125022555 is about 500.0300715247.

The spelling of 125022555 in words is "one hundred twenty-five million, twenty-two thousand, five hundred fifty-five".