55212762 has 32 divisors (see below), whose sum is σ = 121927680. Its totient is φ = 16527920.

The previous prime is 55212743. The next prime is 55212779. The reversal of 55212762 is 26721255.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 439 + ... + 10517.

It is an arithmetic number, because the mean of its divisors is an integer number (3810240).

Almost surely, 2^55212762 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55212762, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60963840).

55212762 is an abundant number, since it is smaller than the sum of its proper divisors (66714918).

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

55212762 is a wasteful number, since it uses less digits than its factorization.

55212762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10178.

The product of its digits is 8400, while the sum is 30.

The square root of 55212762 is about 7430.5290524969. The cubic root of 55212762 is about 380.7849931487.

The spelling of 55212762 in words is "fifty-five million, two hundred twelve thousand, seven hundred sixty-two".