51410540 has 24 divisors (see below), whose sum is σ = 108744720. Its totient is φ = 20415168.

The previous prime is 51410539. The next prime is 51410549. The reversal of 51410540 is 4501415.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (51410549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6467 + ... + 12026.

It is an arithmetic number, because the mean of its divisors is an integer number (4531030).

Almost surely, 2^51410540 is an apocalyptic number.

It is an amenable number.

51410540 is an abundant number, since it is smaller than the sum of its proper divisors (57334180).

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

51410540 is a wasteful number, since it uses less digits than its factorization.

51410540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18641 (or 18639 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 51410540 is about 7170.1143644994. The cubic root of 51410540 is about 371.8353898446.

Adding to 51410540 its reverse (4501415), we get a palindrome (55911955).

The spelling of 51410540 in words is "fifty-one million, four hundred ten thousand, five hundred forty".