55625506 has 8 divisors (see below), whose sum is σ = 83506860. Its totient is φ = 27789888.

The previous prime is 55625497. The next prime is 55625519. The reversal of 55625506 is 60552655.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 48650625 + 6974881 = 6975^2 + 2641^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8211 + ... + 13366.

Almost surely, 2^55625506 is an apocalyptic number.

55625506 is a deficient number, since it is larger than the sum of its proper divisors (27881354).

55625506 is a wasteful number, since it uses less digits than its factorization.

55625506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22868.

The product of its (nonzero) digits is 45000, while the sum is 34.

The square root of 55625506 is about 7458.2508673281. The cubic root of 55625506 is about 381.7314935575.

It can be divided in two parts, 556 and 25506, that added together give a palindrome (26062).

The spelling of 55625506 in words is "fifty-five million, six hundred twenty-five thousand, five hundred six".