55212036 has 24 divisors (see below), whose sum is σ = 140540064. Its totient is φ = 16730880.

The previous prime is 55212011. The next prime is 55212071. The reversal of 55212036 is 63021255.

It is a junction number, because it is equal to n+sod(n) for n = 55211997 and 55212015.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209005 + ... + 209268.

It is an arithmetic number, because the mean of its divisors is an integer number (5855836).

Almost surely, 2^55212036 is an apocalyptic number.

It is an amenable number.

55212036 is an abundant number, since it is smaller than the sum of its proper divisors (85328028).

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

55212036 is a wasteful number, since it uses less digits than its factorization.

55212036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418291 (or 418289 counting only the distinct ones).

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

The square root of 55212036 is about 7430.4801998256. The cubic root of 55212036 is about 380.7833241438.

It can be divided in two parts, 5521 and 2036, that added together give a palindrome (7557).

The spelling of 55212036 in words is "fifty-five million, two hundred twelve thousand, thirty-six".