56151701 has 2 divisors, whose sum is σ = 56151702. Its totient is φ = 56151700.

The previous prime is 56151637. The next prime is 56151703. The reversal of 56151701 is 10715165.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38427601 + 17724100 = 6199^2 + 4210^2 .

It is a cyclic number.

It is not a de Polignac number, because 56151701 - 2⁶ = 56151637 is a prime.

It is a Sophie Germain prime.

Together with 56151703, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56151703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28075850 + 28075851.

It is an arithmetic number, because the mean of its divisors is an integer number (28075851).

Almost surely, 2^56151701 is an apocalyptic number.

It is an amenable number.

56151701 is a deficient number, since it is larger than the sum of its proper divisors (1).

56151701 is an equidigital number, since it uses as much as digits as its factorization.

56151701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1050, while the sum is 26.

The square root of 56151701 is about 7493.4438678087. The cubic root of 56151701 is about 382.9313936109.

Adding to 56151701 its reverse (10715165), we get a palindrome (66866866).

The spelling of 56151701 in words is "fifty-six million, one hundred fifty-one thousand, seven hundred one".