51113446 has 4 divisors (see below), whose sum is σ = 76670172. Its totient is φ = 25556722.

The previous prime is 51113431. The next prime is 51113459. The reversal of 51113446 is 64431115.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×51113446² = 5225168723989832, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51113446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12778360 + ... + 12778363.

It is an arithmetic number, because the mean of its divisors is an integer number (19167543).

Almost surely, 2^51113446 is an apocalyptic number.

51113446 is a deficient number, since it is larger than the sum of its proper divisors (25556726).

51113446 is a wasteful number, since it uses less digits than its factorization.

51113446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25556725.

The product of its digits is 1440, while the sum is 25.

The square root of 51113446 is about 7149.3668251112. The cubic root of 51113446 is about 371.1177448771.

The spelling of 51113446 in words is "fifty-one million, one hundred thirteen thousand, four hundred forty-six".