56669545 has 16 divisors (see below), whose sum is σ = 69954048. Its totient is φ = 44049600.

The previous prime is 56669537. The next prime is 56669563. The reversal of 56669545 is 54596665.

It is a happy number.

56669545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56669545 - 2³ = 56669537 is a prime.

It is a super-2 number, since 2×56669545² = 6422874661014050, which contains 22 as substring.

Its product of digits (972000) is a multiple of the sum of its prime divisors (1800).

It is a junction number, because it is equal to n+sod(n) for n = 56669495 and 56669504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34687 + ... + 36283.

It is an arithmetic number, because the mean of its divisors is an integer number (4372128).

Almost surely, 2^56669545 is an apocalyptic number.

It is an amenable number.

56669545 is a deficient number, since it is larger than the sum of its proper divisors (13284503).

56669545 is a wasteful number, since it uses less digits than its factorization.

56669545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800.

The product of its digits is 972000, while the sum is 46.

The square root of 56669545 is about 7527.9177067766. The cubic root of 56669545 is about 384.1049540409.

The spelling of 56669545 in words is "fifty-six million, six hundred sixty-nine thousand, five hundred forty-five".