54149278 has 24 divisors (see below), whose sum is σ = 88084152. Its totient is φ = 24944112.

The previous prime is 54149269. The next prime is 54149287. The reversal of 54149278 is 87294145.

It is an interprime number because it is at equal distance from previous prime (54149269) and next prime (54149287).

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

It is a self number, because there is not a number n which added to its sum of digits gives 54149278.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25701 + ... + 27727.

It is an arithmetic number, because the mean of its divisors is an integer number (3670173).

Almost surely, 2^54149278 is an apocalyptic number.

54149278 is a deficient number, since it is larger than the sum of its proper divisors (33934874).

54149278 is a wasteful number, since it uses less digits than its factorization.

54149278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104 (or 2085 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 54149278 is about 7358.6192998415. The cubic root of 54149278 is about 378.3242880270.

The spelling of 54149278 in words is "fifty-four million, one hundred forty-nine thousand, two hundred seventy-eight".