2055501997 has 2 divisors, whose sum is σ = 2055501998. Its totient is φ = 2055501996.

The previous prime is 2055501983. The next prime is 2055502037. The reversal of 2055501997 is 7991055502.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1555040356 + 500461641 = 39434^2 + 22371^2 .

It is a cyclic number.

It is not a de Polignac number, because 2055501997 - 2¹⁹ = 2054977709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2055501967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1027750998 + 1027750999.

It is an arithmetic number, because the mean of its divisors is an integer number (1027750999).

Almost surely, 2^2055501997 is an apocalyptic number.

It is an amenable number.

2055501997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2055501997 is an equidigital number, since it uses as much as digits as its factorization.

2055501997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141750, while the sum is 43.

The square root of 2055501997 is about 45337.6443697729. The cubic root of 2055501997 is about 1271.4695611863.

The spelling of 2055501997 in words is "two billion, fifty-five million, five hundred one thousand, nine hundred ninety-seven".