55194789 has 16 divisors (see below), whose sum is σ = 80343872. Its totient is φ = 33499008.

The previous prime is 55194731. The next prime is 55194793. The reversal of 55194789 is 98749155.

It is not a de Polignac number, because 55194789 - 2¹³ = 55186597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55194709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6847 + ... + 12540.

It is an arithmetic number, because the mean of its divisors is an integer number (5021492).

Almost surely, 2^55194789 is an apocalyptic number.

It is an amenable number.

55194789 is a deficient number, since it is larger than the sum of its proper divisors (25149083).

55194789 is a wasteful number, since it uses less digits than its factorization.

55194789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19476.

The product of its digits is 453600, while the sum is 48.

The square root of 55194789 is about 7429.3195516144. The cubic root of 55194789 is about 380.7436706285.

The spelling of 55194789 in words is "fifty-five million, one hundred ninety-four thousand, seven hundred eighty-nine".