54978154 has 32 divisors (see below), whose sum is σ = 104140800. Its totient is φ = 21144240.

The previous prime is 54978151. The next prime is 54978167. The reversal of 54978154 is 45187945.

It is a self number, because there is not a number n which added to its sum of digits gives 54978154.

It is not an unprimeable number, because it can be changed into a prime (54978151) 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, 9907 + ... + 14425.

It is an arithmetic number, because the mean of its divisors is an integer number (3254400).

Almost surely, 2^54978154 is an apocalyptic number.

54978154 is a deficient number, since it is larger than the sum of its proper divisors (49162646).

54978154 is a wasteful number, since it uses less digits than its factorization.

54978154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4618.

The product of its digits is 201600, while the sum is 43.

The square root of 54978154 is about 7414.7254837924. The cubic root of 54978154 is about 380.2448883176.

The spelling of 54978154 in words is "fifty-four million, nine hundred seventy-eight thousand, one hundred fifty-four".