54078637 has 4 divisors (see below), whose sum is σ = 54377596. Its totient is φ = 53779680.

The previous prime is 54078611. The next prime is 54078643. The reversal of 54078637 is 73687045.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 188356 + 53890281 = 434^2 + 7341^2 .

It is a cyclic number.

It is not a de Polignac number, because 54078637 - 2⁷ = 54078509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54078637.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54078677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149208 + ... + 149569.

It is an arithmetic number, because the mean of its divisors is an integer number (13594399).

Almost surely, 2^54078637 is an apocalyptic number.

It is an amenable number.

54078637 is a deficient number, since it is larger than the sum of its proper divisors (298959).

54078637 is a wasteful number, since it uses less digits than its factorization.

54078637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298958.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 54078637 is about 7353.8178519732. The cubic root of 54078637 is about 378.1597008156.

The spelling of 54078637 in words is "fifty-four million, seventy-eight thousand, six hundred thirty-seven".