54978366 has 32 divisors (see below), whose sum is σ = 111548448. Its totient is φ = 18063360.

The previous prime is 54978361. The next prime is 54978367. The reversal of 54978366 is 66387945.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54978361) 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, 228006 + ... + 228246.

It is an arithmetic number, because the mean of its divisors is an integer number (3485889).

Almost surely, 2^54978366 is an apocalyptic number.

54978366 is an abundant number, since it is smaller than the sum of its proper divisors (56570082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54978366 is a wasteful number, since it uses less digits than its factorization.

54978366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636.

The product of its digits is 1088640, while the sum is 48.

The square root of 54978366 is about 7414.7397796551. The cubic root of 54978366 is about 380.2453770682.

The spelling of 54978366 in words is "fifty-four million, nine hundred seventy-eight thousand, three hundred sixty-six".