51396607 has 2 divisors, whose sum is σ = 51396608. Its totient is φ = 51396606.

The previous prime is 51396563. The next prime is 51396617. The reversal of 51396607 is 70669315.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51396607 is a prime.

It is a super-2 number, since 2×51396607² = 5283222422224898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51396617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25698303 + 25698304.

It is an arithmetic number, because the mean of its divisors is an integer number (25698304).

Almost surely, 2^51396607 is an apocalyptic number.

51396607 is a deficient number, since it is larger than the sum of its proper divisors (1).

51396607 is an equidigital number, since it uses as much as digits as its factorization.

51396607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 51396607 is about 7169.1426963062. The cubic root of 51396607 is about 371.8017958865.

It can be divided in two parts, 51396 and 607, that added together give a triangular number (52003 = T₃₂₂).

The spelling of 51396607 in words is "fifty-one million, three hundred ninety-six thousand, six hundred seven".