55245877 has 2 divisors, whose sum is σ = 55245878. Its totient is φ = 55245876.

The previous prime is 55245859. The next prime is 55245893. The reversal of 55245877 is 77854255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38056561 + 17189316 = 6169^2 + 4146^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55245877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55245857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27622938 + 27622939.

It is an arithmetic number, because the mean of its divisors is an integer number (27622939).

Almost surely, 2^55245877 is an apocalyptic number.

It is an amenable number.

55245877 is a deficient number, since it is larger than the sum of its proper divisors (1).

55245877 is an equidigital number, since it uses as much as digits as its factorization.

55245877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 392000, while the sum is 43.

The square root of 55245877 is about 7432.7570254920. The cubic root of 55245877 is about 380.8611058351.

The spelling of 55245877 in words is "fifty-five million, two hundred forty-five thousand, eight hundred seventy-seven".