55894369 has 2 divisors, whose sum is σ = 55894370. Its totient is φ = 55894368.

The previous prime is 55894337. The next prime is 55894379. The reversal of 55894369 is 96349855.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46512400 + 9381969 = 6820^2 + 3063^2 .

It is a cyclic number.

It is not a de Polignac number, because 55894369 - 2⁵ = 55894337 is a prime.

It is a super-2 number, since 2×55894369² = 6248360971816322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55894379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27947184 + 27947185.

It is an arithmetic number, because the mean of its divisors is an integer number (27947185).

Almost surely, 2^55894369 is an apocalyptic number.

It is an amenable number.

55894369 is a deficient number, since it is larger than the sum of its proper divisors (1).

55894369 is an equidigital number, since it uses as much as digits as its factorization.

55894369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1166400, while the sum is 49.

The square root of 55894369 is about 7476.2536741339. The cubic root of 55894369 is about 382.3455317729.

The spelling of 55894369 in words is "fifty-five million, eight hundred ninety-four thousand, three hundred sixty-nine".