55370761 has 2 divisors, whose sum is σ = 55370762. Its totient is φ = 55370760.

The previous prime is 55370753. The next prime is 55370767. The reversal of 55370761 is 16707355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55353600 + 17161 = 7440^2 + 131^2 .

It is a cyclic number.

It is not a de Polignac number, because 55370761 - 2³ = 55370753 is a prime.

It is not a weakly prime, because it can be changed into another prime (55370767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27685380 + 27685381.

It is an arithmetic number, because the mean of its divisors is an integer number (27685381).

Almost surely, 2^55370761 is an apocalyptic number.

It is an amenable number.

55370761 is a deficient number, since it is larger than the sum of its proper divisors (1).

55370761 is an equidigital number, since it uses as much as digits as its factorization.

55370761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22050, while the sum is 34.

The square root of 55370761 is about 7441.1532036372. The cubic root of 55370761 is about 381.1478703057.

The spelling of 55370761 in words is "fifty-five million, three hundred seventy thousand, seven hundred sixty-one".