55431194 has 32 divisors (see below), whose sum is σ = 103063296. Its totient is φ = 21772800.

The previous prime is 55431161. The next prime is 55431199. The reversal of 55431194 is 49113455.

It is a self number, because there is not a number n which added to its sum of digits gives 55431194.

It is not an unprimeable number, because it can be changed into a prime (55431199) 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, 26474 + ... + 28490.

It is an arithmetic number, because the mean of its divisors is an integer number (3220728).

Almost surely, 2^55431194 is an apocalyptic number.

55431194 is a deficient number, since it is larger than the sum of its proper divisors (47632102).

55431194 is a wasteful number, since it uses less digits than its factorization.

55431194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2190.

The product of its digits is 10800, while the sum is 32.

The square root of 55431194 is about 7445.2128243590. The cubic root of 55431194 is about 381.2864845851.

The spelling of 55431194 in words is "fifty-five million, four hundred thirty-one thousand, one hundred ninety-four".