51103744 has 24 divisors (see below), whose sum is σ = 102186630. Its totient is φ = 25550848.

The previous prime is 51103727. The next prime is 51103747. The reversal of 51103744 is 44730115.

It can be written as a sum of positive squares in only one way, i.e., 38937600 + 12166144 = 6240^2 + 3488^2 .

It is a super-2 number, since 2×51103744² = 5223185301635072, which contains 22 as substring.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (51103747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10429 + ... + 14524.

Almost surely, 2^51103744 is an apocalyptic number.

It is an amenable number.

51103744 is a deficient number, since it is larger than the sum of its proper divisors (51082886).

51103744 is an equidigital number, since it uses as much as digits as its factorization.

51103744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24975 (or 24955 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 51103744 is about 7148.6882712845. The cubic root of 51103744 is about 371.0942623921.

Adding to 51103744 its reverse (44730115), we get a palindrome (95833859).

The spelling of 51103744 in words is "fifty-one million, one hundred three thousand, seven hundred forty-four".