54611978 has 16 divisors (see below), whose sum is σ = 84205440. Its totient is φ = 26549376.

The previous prime is 54611941. The next prime is 54611981. The reversal of 54611978 is 87911645.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19226 + ... + 21882.

It is an arithmetic number, because the mean of its divisors is an integer number (5262840).

Almost surely, 2^54611978 is an apocalyptic number.

54611978 is a deficient number, since it is larger than the sum of its proper divisors (29593462).

54611978 is a wasteful number, since it uses less digits than its factorization.

54611978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2941.

The product of its digits is 60480, while the sum is 41.

The square root of 54611978 is about 7389.9917455976. The cubic root of 54611978 is about 379.3988139269.

The spelling of 54611978 in words is "fifty-four million, six hundred eleven thousand, nine hundred seventy-eight".