51462919 has 2 divisors, whose sum is σ = 51462920. Its totient is φ = 51462918.

The previous prime is 51462889. The next prime is 51462923. The reversal of 51462919 is 91926415.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51462919 is a prime.

It is a super-2 number, since 2×51462919² = 5296864064001122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51462949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25731459 + 25731460.

It is an arithmetic number, because the mean of its divisors is an integer number (25731460).

Almost surely, 2^51462919 is an apocalyptic number.

51462919 is a deficient number, since it is larger than the sum of its proper divisors (1).

51462919 is an equidigital number, since it uses as much as digits as its factorization.

51462919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 37.

The square root of 51462919 is about 7173.7660262933. The cubic root of 51462919 is about 371.9616269626.

The spelling of 51462919 in words is "fifty-one million, four hundred sixty-two thousand, nine hundred nineteen".