56172701 has 8 divisors (see below), whose sum is σ = 60558624. Its totient is φ = 51796080.

The previous prime is 56172691. The next prime is 56172703. The reversal of 56172701 is 10727165.

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

It is a cyclic number.

It is not a de Polignac number, because 56172701 - 2⁶ = 56172637 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 (56172703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15110 + ... + 18456.

It is an arithmetic number, because the mean of its divisors is an integer number (7569828).

Almost surely, 2^56172701 is an apocalyptic number.

It is an amenable number.

56172701 is a deficient number, since it is larger than the sum of its proper divisors (4385923).

56172701 is a wasteful number, since it uses less digits than its factorization.

56172701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4651.

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 56172701 is about 7494.8449617053. The cubic root of 56172701 is about 382.9791247681.

Adding to 56172701 its reverse (10727165), we get a palindrome (66899866).

The spelling of 56172701 in words is "fifty-six million, one hundred seventy-two thousand, seven hundred one".