55722223749 has 4 divisors (see below), whose sum is σ = 74296298336. Its totient is φ = 37148149164.

The previous prime is 55722223729. The next prime is 55722223757. The reversal of 55722223749 is 94732222755.

55722223749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 55722223749 - 2⁹ = 55722223237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55722223698 and 55722223707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55722223729) 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, 9287037289 + ... + 9287037294.

It is an arithmetic number, because the mean of its divisors is an integer number (18574074584).

Almost surely, 2^55722223749 is an apocalyptic number.

It is an amenable number.

55722223749 is a deficient number, since it is larger than the sum of its proper divisors (18574074587).

55722223749 is a wasteful number, since it uses less digits than its factorization.

55722223749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18574074586.

The product of its digits is 2116800, while the sum is 48.

The spelling of 55722223749 in words is "fifty-five billion, seven hundred twenty-two million, two hundred twenty-three thousand, seven hundred forty-nine".