55247922 has 12 divisors (see below), whose sum is σ = 119703870. Its totient is φ = 18415968.

The previous prime is 55247903. The next prime is 55247923. The reversal of 55247922 is 22974255.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 43283241 + 11964681 = 6579^2 + 3459^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55247923) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1534647 + ... + 1534682.

Almost surely, 2^55247922 is an apocalyptic number.

55247922 is an abundant number, since it is smaller than the sum of its proper divisors (64455948).

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

55247922 is a wasteful number, since it uses less digits than its factorization.

55247922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3069337 (or 3069334 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 55247922 is about 7432.8945909383. The cubic root of 55247922 is about 380.8658051381.

It can be divided in two parts, 55247 and 922, that added together give a square (56169 = 237²).

The spelling of 55247922 in words is "fifty-five million, two hundred forty-seven thousand, nine hundred twenty-two".