51374633 has 2 divisors, whose sum is σ = 51374634. Its totient is φ = 51374632.

The previous prime is 51374623. The next prime is 51374641. The reversal of 51374633 is 33647315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44983849 + 6390784 = 6707^2 + 2528^2 .

It is a cyclic number.

It is not a de Polignac number, because 51374633 - 2¹² = 51370537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51374633.

It is not a weakly prime, because it can be changed into another prime (51374623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25687316 + 25687317.

It is an arithmetic number, because the mean of its divisors is an integer number (25687317).

Almost surely, 2^51374633 is an apocalyptic number.

It is an amenable number.

51374633 is a deficient number, since it is larger than the sum of its proper divisors (1).

51374633 is an equidigital number, since it uses as much as digits as its factorization.

51374633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 32.

The square root of 51374633 is about 7167.6099921801. The cubic root of 51374633 is about 371.7488018742.

The spelling of 51374633 in words is "fifty-one million, three hundred seventy-four thousand, six hundred thirty-three".