51297453 has 6 divisors (see below), whose sum is σ = 74096334. Its totient is φ = 34198296.

The previous prime is 51297431. The next prime is 51297469. The reversal of 51297453 is 35479215.

51297453 is a `hidden beast` number, since 512 + 97 + 4 + 53 = 666.

It can be written as a sum of positive squares in only one way, i.e., 50381604 + 915849 = 7098^2 + 957^2 .

It is not a de Polignac number, because 51297453 - 2²⁵ = 17743021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51290453) 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, 2849850 + ... + 2849867.

It is an arithmetic number, because the mean of its divisors is an integer number (12349389).

Almost surely, 2^51297453 is an apocalyptic number.

It is an amenable number.

51297453 is a deficient number, since it is larger than the sum of its proper divisors (22798881).

51297453 is a wasteful number, since it uses less digits than its factorization.

51297453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5699723 (or 5699720 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 51297453 is about 7162.2240260969. The cubic root of 51297453 is about 371.5625494340.

The spelling of 51297453 in words is "fifty-one million, two hundred ninety-seven thousand, four hundred fifty-three".