56869145 has 8 divisors (see below), whose sum is σ = 70596360. Its totient is φ = 43926400.

The previous prime is 56869139. The next prime is 56869151. The reversal of 56869145 is 54196865.

It is an interprime number because it is at equal distance from previous prime (56869139) and next prime (56869151).

It can be written as a sum of positive squares in 4 ways, for example, as 1038361 + 55830784 = 1019^2 + 7472^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56869145 - 2⁴ = 56869129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56869096 and 56869105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195956 + ... + 196245.

It is an arithmetic number, because the mean of its divisors is an integer number (8824545).

Almost surely, 2^56869145 is an apocalyptic number.

It is an amenable number.

56869145 is a deficient number, since it is larger than the sum of its proper divisors (13727215).

56869145 is a wasteful number, since it uses less digits than its factorization.

56869145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392235.

The product of its digits is 259200, while the sum is 44.

The square root of 56869145 is about 7541.1633717882. The cubic root of 56869145 is about 384.5553871182. Note that the first 3 decimals are identical.

The spelling of 56869145 in words is "fifty-six million, eight hundred sixty-nine thousand, one hundred forty-five".