54823557 has 4 divisors (see below), whose sum is σ = 73098080. Its totient is φ = 36549036.

The previous prime is 54823553. The next prime is 54823577. The reversal of 54823557 is 75532845.

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.

It is not a de Polignac number, because 54823557 - 2² = 54823553 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54823553) 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, 9137257 + ... + 9137262.

It is an arithmetic number, because the mean of its divisors is an integer number (18274520).

Almost surely, 2^54823557 is an apocalyptic number.

It is an amenable number.

54823557 is a deficient number, since it is larger than the sum of its proper divisors (18274523).

54823557 is a wasteful number, since it uses less digits than its factorization.

54823557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18274522.

The product of its digits is 168000, while the sum is 39.

The square root of 54823557 is about 7404.2931465468. The cubic root of 54823557 is about 379.8881411294. Note that the first 3 decimals are identical.

The spelling of 54823557 in words is "fifty-four million, eight hundred twenty-three thousand, five hundred fifty-seven".