51113450 has 24 divisors (see below), whose sum is σ = 95618880. Its totient is φ = 20327600.

The previous prime is 51113431. The next prime is 51113459. The reversal of 51113450 is 5431115.

It is a super-2 number, since 2×51113450² = 5225169541805000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51113459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6095 + ... + 11805.

It is an arithmetic number, because the mean of its divisors is an integer number (3984120).

Almost surely, 2^51113450 is an apocalyptic number.

51113450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51113450 is a deficient number, since it is larger than the sum of its proper divisors (44505430).

51113450 is a wasteful number, since it uses less digits than its factorization.

51113450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5902 (or 5897 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 51113450 is about 7149.3671048562. The cubic root of 51113450 is about 371.1177545580.

Adding to 51113450 its reverse (5431115), we get a palindrome (56544565).

The spelling of 51113450 in words is "fifty-one million, one hundred thirteen thousand, four hundred fifty".