56172301 has 4 divisors (see below), whose sum is σ = 59476572. Its totient is φ = 52868032.

The previous prime is 56172299. The next prime is 56172323. The reversal of 56172301 is 10327165.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19811401 + 36360900 = 4451^2 + 6030^2 .

It is a cyclic number.

It is not a de Polignac number, because 56172301 - 2¹ = 56172299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56172001) 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, 1652110 + ... + 1652143.

It is an arithmetic number, because the mean of its divisors is an integer number (14869143).

Almost surely, 2^56172301 is an apocalyptic number.

It is an amenable number.

56172301 is a deficient number, since it is larger than the sum of its proper divisors (3304271).

56172301 is a wasteful number, since it uses less digits than its factorization.

56172301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304270.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 56172301 is about 7494.8182766495. The cubic root of 56172301 is about 382.9782157143.

Adding to 56172301 its reverse (10327165), we get a palindrome (66499466).

The spelling of 56172301 in words is "fifty-six million, one hundred seventy-two thousand, three hundred one".