55364278 has 8 divisors (see below), whose sum is σ = 83085120. Its totient is φ = 27669240.

The previous prime is 55364273. The next prime is 55364293. The reversal of 55364278 is 87246355.

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

It is a super-2 number, since 2×55364278² = 6130406556922568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55364278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55364273) 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, 348 + ... + 10528.

It is an arithmetic number, because the mean of its divisors is an integer number (10385640).

Almost surely, 2^55364278 is an apocalyptic number.

55364278 is a deficient number, since it is larger than the sum of its proper divisors (27720842).

55364278 is a wasteful number, since it uses less digits than its factorization.

55364278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12902.

The product of its digits is 201600, while the sum is 40.

The square root of 55364278 is about 7440.7175729227. The cubic root of 55364278 is about 381.1329943553.

The spelling of 55364278 in words is "fifty-five million, three hundred sixty-four thousand, two hundred seventy-eight".