51454244 has 6 divisors (see below), whose sum is σ = 90044934. Its totient is φ = 25727120.

The previous prime is 51454229. The next prime is 51454253. The reversal of 51454244 is 44245415.

It can be written as a sum of positive squares in only one way, i.e., 51294244 + 160000 = 7162^2 + 400^2 .

It is a super-2 number, since 2×51454244² = 5295078451223072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6431777 + ... + 6431784.

It is an arithmetic number, because the mean of its divisors is an integer number (15007489).

Almost surely, 2^51454244 is an apocalyptic number.

It is an amenable number.

51454244 is a deficient number, since it is larger than the sum of its proper divisors (38590690).

51454244 is a wasteful number, since it uses less digits than its factorization.

51454244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12863565 (or 12863563 counting only the distinct ones).

The product of its digits is 12800, while the sum is 29.

The square root of 51454244 is about 7173.1613672076. The cubic root of 51454244 is about 371.9407255154.

Adding to 51454244 its reverse (44245415), we get a palindrome (95699659).

The spelling of 51454244 in words is "fifty-one million, four hundred fifty-four thousand, two hundred forty-four".