54078531 has 16 divisors (see below), whose sum is σ = 78425760. Its totient is φ = 32947200.

The previous prime is 54078517. The next prime is 54078559. The reversal of 54078531 is 13587045.

It is not a de Polignac number, because 54078531 - 2¹⁸ = 53816387 is a prime.

It is a super-2 number, since 2×54078531² = 5848975030235922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 54078492 and 54078501.

It is not an unprimeable number, because it can be changed into a prime (54078511) 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, 2926 + ... + 10803.

It is an arithmetic number, because the mean of its divisors is an integer number (4901610).

Almost surely, 2^54078531 is an apocalyptic number.

54078531 is a deficient number, since it is larger than the sum of its proper divisors (24347229).

54078531 is a wasteful number, since it uses less digits than its factorization.

54078531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13846.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 54078531 is about 7353.8106448290. The cubic root of 54078531 is about 378.1594537374.

The spelling of 54078531 in words is "fifty-four million, seventy-eight thousand, five hundred thirty-one".