56170051 has 4 divisors (see below), whose sum is σ = 64194352. Its totient is φ = 48145752.

The previous prime is 56170043. The next prime is 56170063. The reversal of 56170051 is 15007165.

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 56170051 - 2³ = 56170043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56169998 and 56170025.

It is not an unprimeable number, because it can be changed into a prime (56170031) 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, 4012140 + ... + 4012153.

It is an arithmetic number, because the mean of its divisors is an integer number (16048588).

Almost surely, 2^56170051 is an apocalyptic number.

56170051 is a deficient number, since it is larger than the sum of its proper divisors (8024301).

56170051 is an equidigital number, since it uses as much as digits as its factorization.

56170051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8024300.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 56170051 is about 7494.6681714403. The cubic root of 56170051 is about 382.9731022065.

The spelling of 56170051 in words is "fifty-six million, one hundred seventy thousand, fifty-one".