51263446 has 12 divisors (see below), whose sum is σ = 83265732. Its totient is φ = 23659896.

The previous prime is 51263431. The next prime is 51263461. The reversal of 51263446 is 64436215.

It is an interprime number because it is at equal distance from previous prime (51263431) and next prime (51263461).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 75496 + ... + 76171.

It is an arithmetic number, because the mean of its divisors is an integer number (6938811).

Almost surely, 2^51263446 is an apocalyptic number.

51263446 is a deficient number, since it is larger than the sum of its proper divisors (32002286).

51263446 is a wasteful number, since it uses less digits than its factorization.

51263446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151695 (or 151682 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The square root of 51263446 is about 7159.8495794255. The cubic root of 51263446 is about 371.4804237133.

The spelling of 51263446 in words is "fifty-one million, two hundred sixty-three thousand, four hundred forty-six".