55012623 has 8 divisors (see below), whose sum is σ = 75879600. Its totient is φ = 35410368.

The previous prime is 55012621. The next prime is 55012637. The reversal of 55012623 is 32621055.

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

It is not a de Polignac number, because 55012623 - 2¹ = 55012621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55012593 and 55012602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55012621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 316078 + ... + 316251.

It is an arithmetic number, because the mean of its divisors is an integer number (9484950).

Almost surely, 2^55012623 is an apocalyptic number.

55012623 is a deficient number, since it is larger than the sum of its proper divisors (20866977).

55012623 is a wasteful number, since it uses less digits than its factorization.

55012623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632361.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 55012623 is about 7417.0494807572. The cubic root of 55012623 is about 380.3243375894.

Adding to 55012623 its reverse (32621055), we get a palindrome (87633678).

The spelling of 55012623 in words is "fifty-five million, twelve thousand, six hundred twenty-three".