55893997 has 2 divisors, whose sum is σ = 55893998. Its totient is φ = 55893996.

The previous prime is 55893973. The next prime is 55894037. The reversal of 55893997 is 79939855.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53494596 + 2399401 = 7314^2 + 1549^2 .

It is a cyclic number.

It is not a de Polignac number, because 55893997 - 2¹¹ = 55891949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55893907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27946998 + 27946999.

It is an arithmetic number, because the mean of its divisors is an integer number (27946999).

Almost surely, 2^55893997 is an apocalyptic number.

It is an amenable number.

55893997 is a deficient number, since it is larger than the sum of its proper divisors (1).

55893997 is an equidigital number, since it uses as much as digits as its factorization.

55893997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3061800, while the sum is 55.

The square root of 55893997 is about 7476.2287953219. The cubic root of 55893997 is about 382.3446835488.

The spelling of 55893997 in words is "fifty-five million, eight hundred ninety-three thousand, nine hundred ninety-seven".