55501841 has 2 divisors, whose sum is σ = 55501842. Its totient is φ = 55501840.

The previous prime is 55501807. The next prime is 55501843. The reversal of 55501841 is 14810555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54700816 + 801025 = 7396^2 + 895^2 .

It is a cyclic number.

It is not a de Polignac number, because 55501841 - 2¹⁸ = 55239697 is a prime.

Together with 55501843, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55501843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27750920 + 27750921.

It is an arithmetic number, because the mean of its divisors is an integer number (27750921).

Almost surely, 2^55501841 is an apocalyptic number.

It is an amenable number.

55501841 is a deficient number, since it is larger than the sum of its proper divisors (1).

55501841 is an equidigital number, since it uses as much as digits as its factorization.

55501841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4000, while the sum is 29.

The square root of 55501841 is about 7449.9557716808. The cubic root of 55501841 is about 381.4483988961.

The spelling of 55501841 in words is "fifty-five million, five hundred one thousand, eight hundred forty-one".