51444297 has 24 divisors (see below), whose sum is σ = 76460384. Its totient is φ = 33312384.

The previous prime is 51444269. The next prime is 51444377. The reversal of 51444297 is 79244415.

It is a happy number.

It is not a de Polignac number, because 51444297 - 2²⁰ = 50395721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51444697) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118593 + ... + 119025.

Almost surely, 2^51444297 is an apocalyptic number.

It is an amenable number.

51444297 is a deficient number, since it is larger than the sum of its proper divisors (25016087).

51444297 is a wasteful number, since it uses less digits than its factorization.

51444297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789 (or 786 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 51444297 is about 7172.4679852893. The cubic root of 51444297 is about 371.9167564344.

The spelling of 51444297 in words is "fifty-one million, four hundred forty-four thousand, two hundred ninety-seven".