54543457 has 4 divisors (see below), whose sum is σ = 54558400. Its totient is φ = 54528516.

The previous prime is 54543451. The next prime is 54543473. The reversal of 54543457 is 75434545.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 75434545 = 5 ⋅15086909.

It is a cyclic number.

It is not a de Polignac number, because 54543457 - 2⁷ = 54543329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54543451) 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, 2044 + ... + 10642.

It is an arithmetic number, because the mean of its divisors is an integer number (13639600).

Almost surely, 2^54543457 is an apocalyptic number.

It is an amenable number.

54543457 is a deficient number, since it is larger than the sum of its proper divisors (14943).

54543457 is an equidigital number, since it uses as much as digits as its factorization.

54543457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14942.

The product of its digits is 168000, while the sum is 37.

The square root of 54543457 is about 7385.3542230552. The cubic root of 54543457 is about 379.2400717896.

It can be divided in two parts, 5454 and 3457, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 54543457 in words is "fifty-four million, five hundred forty-three thousand, four hundred fifty-seven".