56001851 has 2 divisors, whose sum is σ = 56001852. Its totient is φ = 56001850.

The previous prime is 56001811. The next prime is 56001853. The reversal of 56001851 is 15810065.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56001851 - 2¹⁴ = 55985467 is a prime.

Together with 56001853, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56001851.

It is not a weakly prime, because it can be changed into another prime (56001853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28000925 + 28000926.

It is an arithmetic number, because the mean of its divisors is an integer number (28000926).

Almost surely, 2^56001851 is an apocalyptic number.

56001851 is a deficient number, since it is larger than the sum of its proper divisors (1).

56001851 is an equidigital number, since it uses as much as digits as its factorization.

56001851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 56001851 is about 7483.4384476656. The cubic root of 56001851 is about 382.5904517885.

The spelling of 56001851 in words is "fifty-six million, one thousand, eight hundred fifty-one".