55395394 has 8 divisors (see below), whose sum is σ = 85958460. Its totient is φ = 26742576.

The previous prime is 55395391. The next prime is 55395413. The reversal of 55395394 is 49359355.

It can be written as a sum of positive squares in 2 ways, for example, as 49210225 + 6185169 = 7015^2 + 2487^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 55395394.

It is not an unprimeable number, because it can be changed into a prime (55395391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477489 + ... + 477604.

Almost surely, 2^55395394 is an apocalyptic number.

55395394 is a deficient number, since it is larger than the sum of its proper divisors (30563066).

55395394 is a wasteful number, since it uses less digits than its factorization.

55395394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955124.

The product of its digits is 364500, while the sum is 43.

The square root of 55395394 is about 7442.8082065844. The cubic root of 55395394 is about 381.2043828248.

The spelling of 55395394 in words is "fifty-five million, three hundred ninety-five thousand, three hundred ninety-four".