125400255 has 64 divisors (see below), whose sum is σ = 218972160. Its totient is φ = 61117056.

The previous prime is 125400251. The next prime is 125400257. The reversal of 125400255 is 552004521.

It is a happy number.

It is not a de Polignac number, because 125400255 - 2² = 125400251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125400251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1171912 + ... + 1172018.

It is an arithmetic number, because the mean of its divisors is an integer number (3421440).

Almost surely, 2^125400255 is an apocalyptic number.

125400255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125400255 is a deficient number, since it is larger than the sum of its proper divisors (93571905).

125400255 is a wasteful number, since it uses less digits than its factorization.

125400255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 125400255 is about 11198.2255290738. The cubic root of 125400255 is about 500.5331047300.

Adding to 125400255 its reverse (552004521), we get a palindrome (677404776).

The spelling of 125400255 in words is "one hundred twenty-five million, four hundred thousand, two hundred fifty-five".