55012507 has 16 divisors (see below), whose sum is σ = 64097280. Its totient is φ = 46720800.

The previous prime is 55012453. The next prime is 55012511. The reversal of 55012507 is 70521055.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 55012507 - 2⁷ = 55012379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55012537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7108 + ... + 12670.

It is an arithmetic number, because the mean of its divisors is an integer number (4006080).

Almost surely, 2^55012507 is an apocalyptic number.

55012507 is a deficient number, since it is larger than the sum of its proper divisors (9084773).

55012507 is a wasteful number, since it uses less digits than its factorization.

55012507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5634.

The product of its (nonzero) digits is 1750, while the sum is 25.

The square root of 55012507 is about 7417.0416609319. The cubic root of 55012507 is about 380.3240702710.

It can be divided in two parts, 5501 and 2507, that added together give a palindrome (8008).

The spelling of 55012507 in words is "fifty-five million, twelve thousand, five hundred seven".