55822253 has 4 divisors (see below), whose sum is σ = 55891068. Its totient is φ = 55753440.

The previous prime is 55822243. The next prime is 55822267. The reversal of 55822253 is 35222855.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28751044 + 27071209 = 5362^2 + 5203^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55822253 is a prime.

It is a super-2 number, since 2×55822253² = 6232247859992018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55822223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33176 + ... + 34817.

It is an arithmetic number, because the mean of its divisors is an integer number (13972767).

Almost surely, 2^55822253 is an apocalyptic number.

It is an amenable number.

55822253 is a deficient number, since it is larger than the sum of its proper divisors (68815).

55822253 is an equidigital number, since it uses as much as digits as its factorization.

55822253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68814.

The product of its digits is 24000, while the sum is 32.

The square root of 55822253 is about 7471.4291136301. The cubic root of 55822253 is about 382.1810244598.

The spelling of 55822253 in words is "fifty-five million, eight hundred twenty-two thousand, two hundred fifty-three".