55722113 has 2 divisors, whose sum is σ = 55722114. Its totient is φ = 55722112.

The previous prime is 55722101. The next prime is 55722127. The reversal of 55722113 is 31122755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46553329 + 9168784 = 6823^2 + 3028^2 .

It is a cyclic number.

It is not a de Polignac number, because 55722113 - 2⁶ = 55722049 is a prime.

It is not a weakly prime, because it can be changed into another prime (55712113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27861056 + 27861057.

It is an arithmetic number, because the mean of its divisors is an integer number (27861057).

Almost surely, 2^55722113 is an apocalyptic number.

It is an amenable number.

55722113 is a deficient number, since it is larger than the sum of its proper divisors (1).

55722113 is an equidigital number, since it uses as much as digits as its factorization.

55722113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2100, while the sum is 26.

The square root of 55722113 is about 7464.7245762988. The cubic root of 55722113 is about 381.9523551041.

Adding to 55722113 its reverse (31122755), we get a palindrome (86844868).

The spelling of 55722113 in words is "fifty-five million, seven hundred twenty-two thousand, one hundred thirteen".