51454719 has 6 divisors (see below), whose sum is σ = 74323496. Its totient is φ = 34303140.

The previous prime is 51454693. The next prime is 51454723. The reversal of 51454719 is 91745415.

It is not a de Polignac number, because 51454719 - 2⁷ = 51454591 is a prime.

It is a super-2 number, since 2×51454719² = 5295176214737922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51454759) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2858587 + ... + 2858604.

Almost surely, 2^51454719 is an apocalyptic number.

51454719 is a deficient number, since it is larger than the sum of its proper divisors (22868777).

51454719 is a wasteful number, since it uses less digits than its factorization.

51454719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5717197 (or 5717194 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 51454719 is about 7173.1944766610. The cubic root of 51454719 is about 371.9418700359.

The spelling of 51454719 in words is "fifty-one million, four hundred fifty-four thousand, seven hundred nineteen".