55372212 has 36 divisors (see below), whose sum is σ = 159964896. Its totient is φ = 15820560.

The previous prime is 55372199. The next prime is 55372243. The reversal of 55372212 is 21227355.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109614 + ... + 110117.

Almost surely, 2^55372212 is an apocalyptic number.

It is an amenable number.

55372212 is an abundant number, since it is smaller than the sum of its proper divisors (104592684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55372212 is a wasteful number, since it uses less digits than its factorization.

55372212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219748 (or 219743 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 55372212 is about 7441.2507013270. The cubic root of 55372212 is about 381.1511996244.

Adding to 55372212 its reverse (21227355), we get a palindrome (76599567).

The spelling of 55372212 in words is "fifty-five million, three hundred seventy-two thousand, two hundred twelve".