125553415 has 16 divisors (see below), whose sum is σ = 171799488. Its totient is φ = 87261696.

The previous prime is 125553409. The next prime is 125553431. The reversal of 125553415 is 514355521.

It is a cyclic number.

It is not a de Polignac number, because 125553415 - 2¹⁷ = 125422343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 55707 + ... + 57916.

It is an arithmetic number, because the mean of its divisors is an integer number (10737468).

Almost surely, 2^125553415 is an apocalyptic number.

125553415 is a deficient number, since it is larger than the sum of its proper divisors (46246073).

125553415 is a wasteful number, since it uses less digits than its factorization.

125553415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113658.

The product of its digits is 15000, while the sum is 31.

The square root of 125553415 is about 11205.0620257096. The cubic root of 125553415 is about 500.7368003837.

The spelling of 125553415 in words is "one hundred twenty-five million, five hundred fifty-three thousand, four hundred fifteen".