55922239 has 4 divisors (see below), whose sum is σ = 55945080. Its totient is φ = 55899400.

The previous prime is 55922221. The next prime is 55922249. The reversal of 55922239 is 93222955.

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

It is a cyclic number.

It is not a de Polignac number, because 55922239 - 2⁹ = 55921727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55922198 and 55922207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55922219) 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, 7237 + ... + 12814.

It is an arithmetic number, because the mean of its divisors is an integer number (13986270).

Almost surely, 2^55922239 is an apocalyptic number.

55922239 is a deficient number, since it is larger than the sum of its proper divisors (22841).

55922239 is a wasteful number, since it uses less digits than its factorization.

55922239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22840.

The product of its digits is 48600, while the sum is 37.

The square root of 55922239 is about 7478.1173432890. The cubic root of 55922239 is about 382.4090694754.

The spelling of 55922239 in words is "fifty-five million, nine hundred twenty-two thousand, two hundred thirty-nine".