51436519 has 2 divisors, whose sum is σ = 51436520. Its totient is φ = 51436518.

The previous prime is 51436507. The next prime is 51436523. The reversal of 51436519 is 91563415.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51436519 - 2¹³ = 51428327 is a prime.

It is a super-2 number, since 2×51436519² = 5291430973674722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51436559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25718259 + 25718260.

It is an arithmetic number, because the mean of its divisors is an integer number (25718260).

Almost surely, 2^51436519 is an apocalyptic number.

51436519 is a deficient number, since it is larger than the sum of its proper divisors (1).

51436519 is an equidigital number, since it uses as much as digits as its factorization.

51436519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16200, while the sum is 34.

The square root of 51436519 is about 7171.9257525437. The cubic root of 51436519 is about 371.8980117954.

The spelling of 51436519 in words is "fifty-one million, four hundred thirty-six thousand, five hundred nineteen".