55355812 has 6 divisors (see below), whose sum is σ = 96872678. Its totient is φ = 27677904.

The previous prime is 55355767. The next prime is 55355819. The reversal of 55355812 is 21855355.

It can be written as a sum of positive squares in only one way, i.e., 54552996 + 802816 = 7386^2 + 896^2 .

It is not an unprimeable number, because it can be changed into a prime (55355819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6919473 + ... + 6919480.

Almost surely, 2^55355812 is an apocalyptic number.

It is an amenable number.

55355812 is a deficient number, since it is larger than the sum of its proper divisors (41516866).

55355812 is a wasteful number, since it uses less digits than its factorization.

55355812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13838957 (or 13838955 counting only the distinct ones).

The product of its digits is 30000, while the sum is 34.

The square root of 55355812 is about 7440.1486544289. The cubic root of 55355812 is about 381.1135664466.

It can be divided in two parts, 553 and 55812, that added together give a palindrome (56365).

The spelling of 55355812 in words is "fifty-five million, three hundred fifty-five thousand, eight hundred twelve".