54552557 has 4 divisors (see below), whose sum is σ = 54569340. Its totient is φ = 54535776.

The previous prime is 54552551. The next prime is 54552569. The reversal of 54552557 is 75525545.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75525545 = 5 ⋅15105109.

It can be written as a sum of positive squares in 2 ways, for example, as 14280841 + 40271716 = 3779^2 + 6346^2 .

It is a cyclic number.

It is not a de Polignac number, because 54552557 - 2⁸ = 54552301 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 54552557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54552551) 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, 1778 + ... + 10595.

It is an arithmetic number, because the mean of its divisors is an integer number (13642335).

Almost surely, 2^54552557 is an apocalyptic number.

It is an amenable number.

54552557 is a deficient number, since it is larger than the sum of its proper divisors (16783).

54552557 is a wasteful number, since it uses less digits than its factorization.

54552557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16782.

The product of its digits is 175000, while the sum is 38.

The square root of 54552557 is about 7385.9702815541. The cubic root of 54552557 is about 379.2611613509.

The spelling of 54552557 in words is "fifty-four million, five hundred fifty-two thousand, five hundred fifty-seven".