51377419 has 2 divisors, whose sum is σ = 51377420. Its totient is φ = 51377418.

The previous prime is 51377401. The next prime is 51377429. The reversal of 51377419 is 91477315.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51377419 is a prime.

It is a super-2 number, since 2×51377419² = 5279278366203122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51377429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25688709 + 25688710.

It is an arithmetic number, because the mean of its divisors is an integer number (25688710).

Almost surely, 2^51377419 is an apocalyptic number.

51377419 is a deficient number, since it is larger than the sum of its proper divisors (1).

51377419 is an equidigital number, since it uses as much as digits as its factorization.

51377419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26460, while the sum is 37.

The square root of 51377419 is about 7167.8043360572. The cubic root of 51377419 is about 371.7555216202.

The spelling of 51377419 in words is "fifty-one million, three hundred seventy-seven thousand, four hundred nineteen".