2055397 has 2 divisors, whose sum is σ = 2055398. Its totient is φ = 2055396.

The previous prime is 2055367. The next prime is 2055409. The reversal of 2055397 is 7935502.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1437601 + 617796 = 1199^2 + 786^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2055397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2055307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1027698 + 1027699.

It is an arithmetic number, because the mean of its divisors is an integer number (1027699).

2^2055397 is an apocalyptic number.

It is an amenable number.

2055397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2055397 is an equidigital number, since it uses as much as digits as its factorization.

2055397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 2055397 is about 1433.6655816473. The cubic root of 2055397 is about 127.1447911526.

The spelling of 2055397 in words is "two million, fifty-five thousand, three hundred ninety-seven".