55623417812 has 6 divisors (see below), whose sum is σ = 97340981178. Its totient is φ = 27811708904.

The previous prime is 55623417793. The next prime is 55623417823. The reversal of 55623417812 is 21871432655.

It can be written as a sum of positive squares in only one way, i.e., 45892779076 + 9730638736 = 214226^2 + 98644^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6952927223 + ... + 6952927230.

It is an arithmetic number, because the mean of its divisors is an integer number (16223496863).

Almost surely, 2^55623417812 is an apocalyptic number.

It is an amenable number.

55623417812 is a deficient number, since it is larger than the sum of its proper divisors (41717563366).

55623417812 is a wasteful number, since it uses less digits than its factorization.

55623417812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13905854457 (or 13905854455 counting only the distinct ones).

The product of its digits is 403200, while the sum is 44.

The spelling of 55623417812 in words is "fifty-five billion, six hundred twenty-three million, four hundred seventeen thousand, eight hundred twelve".