51223446 has 48 divisors (see below), whose sum is σ = 114004800. Its totient is φ = 16616304.

The previous prime is 51223433. The next prime is 51223451. The reversal of 51223446 is 64432215.

It is a super-2 number, since 2×51223446² = 5247682840229832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147445 + ... + 147791.

It is an arithmetic number, because the mean of its divisors is an integer number (2375100).

Almost surely, 2^51223446 is an apocalyptic number.

51223446 is an abundant number, since it is smaller than the sum of its proper divisors (62781354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51223446 is a wasteful number, since it uses less digits than its factorization.

51223446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553 (or 550 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 51223446 is about 7157.0556795375. The cubic root of 51223446 is about 371.3837786080.

The spelling of 51223446 in words is "fifty-one million, two hundred twenty-three thousand, four hundred forty-six".