54569649 has 4 divisors (see below), whose sum is σ = 72759536. Its totient is φ = 36379764.

The previous prime is 54569633. The next prime is 54569657. The reversal of 54569649 is 94696545.

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 54569649 - 2⁴ = 54569633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54569598 and 54569607.

It is not an unprimeable number, because it can be changed into a prime (54569689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9094939 + ... + 9094944.

It is an arithmetic number, because the mean of its divisors is an integer number (18189884).

Almost surely, 2^54569649 is an apocalyptic number.

It is an amenable number.

54569649 is a deficient number, since it is larger than the sum of its proper divisors (18189887).

54569649 is a wasteful number, since it uses less digits than its factorization.

54569649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18189886.

The product of its digits is 1166400, while the sum is 48.

The square root of 54569649 is about 7387.1272494793. The cubic root of 54569649 is about 379.3007663071.

It can be divided in two parts, 5 and 4569649, that added together give a palindrome (4569654).

The spelling of 54569649 in words is "fifty-four million, five hundred sixty-nine thousand, six hundred forty-nine".