125553015 has 24 divisors (see below), whose sum is σ = 248715168. Its totient is φ = 57395520.

The previous prime is 125553013. The next prime is 125553049. The reversal of 125553015 is 510355521.

125553015 is a `hidden beast` number, since 125 + 5 + 530 + 1 + 5 = 666.

It is not a de Polignac number, because 125553015 - 2¹ = 125553013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125553015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125553011) 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 23 ways as a sum of consecutive naturals, for example, 198976 + ... + 199605.

It is an arithmetic number, because the mean of its divisors is an integer number (10363132).

Almost surely, 2^125553015 is an apocalyptic number.

125553015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125553015 is a deficient number, since it is larger than the sum of its proper divisors (123162153).

125553015 is a wasteful number, since it uses less digits than its factorization.

125553015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398599 (or 398596 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 125553015 is about 11205.0441766197. The cubic root of 125553015 is about 500.7362686182.

The spelling of 125553015 in words is "one hundred twenty-five million, five hundred fifty-three thousand, fifteen".