51345460 has 24 divisors (see below), whose sum is σ = 109128096. Its totient is φ = 20290080.

The previous prime is 51345439. The next prime is 51345473. The reversal of 51345460 is 6454315.

51345460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51345460² = 5272712525223200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13806 + ... + 17125.

It is an arithmetic number, because the mean of its divisors is an integer number (4547004).

Almost surely, 2^51345460 is an apocalyptic number.

It is an amenable number.

51345460 is an abundant number, since it is smaller than the sum of its proper divisors (57782636).

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

51345460 is a wasteful number, since it uses less digits than its factorization.

51345460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31023 (or 31021 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 51345460 is about 7165.5746454838. The cubic root of 51345460 is about 371.6784229045.

Adding to 51345460 its reverse (6454315), we get a palindrome (57799775).

The spelling of 51345460 in words is "fifty-one million, three hundred forty-five thousand, four hundred sixty".