55125015 has 32 divisors (see below), whose sum is σ = 97459200. Its totient is φ = 26382720.

The previous prime is 55125013. The next prime is 55125017. The reversal of 55125015 is 51052155.

It is an interprime number because it is at equal distance from previous prime (55125013) and next prime (55125017).

It is not a de Polignac number, because 55125015 - 2¹ = 55125013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55125013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10921 + ... + 15149.

It is an arithmetic number, because the mean of its divisors is an integer number (3045600).

Almost surely, 2^55125015 is an apocalyptic number.

55125015 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55125015 is a deficient number, since it is larger than the sum of its proper divisors (42334185).

55125015 is a wasteful number, since it uses less digits than its factorization.

55125015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4327.

The product of its (nonzero) digits is 1250, while the sum is 24.

The square root of 55125015 is about 7424.6222126112. The cubic root of 55125015 is about 380.5831650710.

The spelling of 55125015 in words is "fifty-five million, one hundred twenty-five thousand, fifteen".