56815435 has 4 divisors (see below), whose sum is σ = 68178528. Its totient is φ = 45452344.

The previous prime is 56815393. The next prime is 56815439. The reversal of 56815435 is 53451865.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56815435 - 2⁷ = 56815307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56815394 and 56815403.

It is not an unprimeable number, because it can be changed into a prime (56815439) 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, 5681539 + ... + 5681548.

It is an arithmetic number, because the mean of its divisors is an integer number (17044632).

Almost surely, 2^56815435 is an apocalyptic number.

56815435 is a deficient number, since it is larger than the sum of its proper divisors (11363093).

56815435 is a wasteful number, since it uses less digits than its factorization.

56815435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11363092.

The product of its digits is 72000, while the sum is 37.

The square root of 56815435 is about 7537.6014089364. The cubic root of 56815435 is about 384.4342846843.

The spelling of 56815435 in words is "fifty-six million, eight hundred fifteen thousand, four hundred thirty-five".