55249123 has 2 divisors, whose sum is σ = 55249124. Its totient is φ = 55249122.

The previous prime is 55249091. The next prime is 55249171. The reversal of 55249123 is 32194255.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55249123 - 2⁵ = 55249091 is a prime.

It is not a weakly prime, because it can be changed into another prime (55249423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27624561 + 27624562.

It is an arithmetic number, because the mean of its divisors is an integer number (27624562).

Almost surely, 2^55249123 is an apocalyptic number.

55249123 is a deficient number, since it is larger than the sum of its proper divisors (1).

55249123 is an equidigital number, since it uses as much as digits as its factorization.

55249123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 31.

The square root of 55249123 is about 7432.9753800211. The cubic root of 55249123 is about 380.8685649193.

The spelling of 55249123 in words is "fifty-five million, two hundred forty-nine thousand, one hundred twenty-three".