54121278 has 16 divisors (see below), whose sum is σ = 108349056. Its totient is φ = 18022680.

The previous prime is 54121273. The next prime is 54121283. The reversal of 54121278 is 87212145.

It is an interprime number because it is at equal distance from previous prime (54121273) and next prime (54121283).

It is a super-2 number, since 2×54121278² = 5858225464706568, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54121273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3175 + ... + 10877.

It is an arithmetic number, because the mean of its divisors is an integer number (6771816).

Almost surely, 2^54121278 is an apocalyptic number.

54121278 is an abundant number, since it is smaller than the sum of its proper divisors (54227778).

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

54121278 is a wasteful number, since it uses less digits than its factorization.

54121278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8879.

The product of its digits is 4480, while the sum is 30.

The square root of 54121278 is about 7356.7165230149. The cubic root of 54121278 is about 378.2590676656.

The spelling of 54121278 in words is "fifty-four million, one hundred twenty-one thousand, two hundred seventy-eight".