36857251 has 2 divisors, whose sum is σ = 36857252. Its totient is φ = 36857250.

The previous prime is 36857209. The next prime is 36857257. The reversal of 36857251 is 15275863.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 36857251 - 2¹⁵ = 36824483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 36857251.

It is not a weakly prime, because it can be changed into another prime (36857257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18428625 + 18428626.

It is an arithmetic number, because the mean of its divisors is an integer number (18428626).

Almost surely, 2^36857251 is an apocalyptic number.

36857251 is a deficient number, since it is larger than the sum of its proper divisors (1).

36857251 is an equidigital number, since it uses as much as digits as its factorization.

36857251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 37.

The square root of 36857251 is about 6071.0172953139. The cubic root of 36857251 is about 332.7931001395.

The spelling of 36857251 in words is "thirty-six million, eight hundred fifty-seven thousand, two hundred fifty-one".