55494799 has 2 divisors, whose sum is σ = 55494800. Its totient is φ = 55494798.

The previous prime is 55494797. The next prime is 55494821. The reversal of 55494799 is 99749455.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55494799 - 2¹ = 55494797 is a prime.

Together with 55494797, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55494797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27747399 + 27747400.

It is an arithmetic number, because the mean of its divisors is an integer number (27747400).

Almost surely, 2^55494799 is an apocalyptic number.

55494799 is a deficient number, since it is larger than the sum of its proper divisors (1).

55494799 is an equidigital number, since it uses as much as digits as its factorization.

55494799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2041200, while the sum is 52.

The square root of 55494799 is about 7449.4831364330. The cubic root of 55494799 is about 381.4322656581.

The spelling of 55494799 in words is "fifty-five million, four hundred ninety-four thousand, seven hundred ninety-nine".