54780278 has 8 divisors (see below), whose sum is σ = 93909072. Its totient is φ = 23477256.

The previous prime is 54780269. The next prime is 54780289. The reversal of 54780278 is 87208745.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1956425 + ... + 1956452.

It is an arithmetic number, because the mean of its divisors is an integer number (11738634).

Almost surely, 2^54780278 is an apocalyptic number.

54780278 is a deficient number, since it is larger than the sum of its proper divisors (39128794).

54780278 is a wasteful number, since it uses less digits than its factorization.

54780278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3912886.

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 54780278 is about 7401.3700083160. The cubic root of 54780278 is about 379.7881506143.

The spelling of 54780278 in words is "fifty-four million, seven hundred eighty thousand, two hundred seventy-eight".