125551455 has 16 divisors (see below), whose sum is σ = 201688704. Its totient is φ = 66692000.

The previous prime is 125551421. The next prime is 125551483. The reversal of 125551455 is 554155521.

It is not a de Polignac number, because 125551455 - 2¹³ = 125543263 is a prime.

125551455 is a modest number, since divided by 51455 gives 1255 as remainder.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 12909 + ... + 20438.

It is an arithmetic number, because the mean of its divisors is an integer number (12605544).

Almost surely, 2^125551455 is an apocalyptic number.

125551455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125551455 is a deficient number, since it is larger than the sum of its proper divisors (76137249).

125551455 is a wasteful number, since it uses less digits than its factorization.

125551455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33606.

The product of its digits is 25000, while the sum is 33.

The square root of 125551455 is about 11204.9745648975. The cubic root of 125551455 is about 500.7341947219.

The spelling of 125551455 in words is "one hundred twenty-five million, five hundred fifty-one thousand, four hundred fifty-five".