51202460 has 12 divisors (see below), whose sum is σ = 107525208. Its totient is φ = 20480976.

The previous prime is 51202387. The next prime is 51202471. The reversal of 51202460 is 6420215.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 2560123 = 51202460 / (5 + 1 + 2 + 0 + 2 + 4 + 6 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1280042 + ... + 1280081.

It is an arithmetic number, because the mean of its divisors is an integer number (8960434).

Almost surely, 2^51202460 is an apocalyptic number.

It is an amenable number.

51202460 is an abundant number, since it is smaller than the sum of its proper divisors (56322748).

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

51202460 is a wasteful number, since it uses less digits than its factorization.

51202460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2560132 (or 2560130 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 51202460 is about 7155.5894236604. The cubic root of 51202460 is about 371.3330536295. Note that the first 3 decimals are identical.

Adding to 51202460 its reverse (6420215), we get a palindrome (57622675).

The spelling of 51202460 in words is "fifty-one million, two hundred two thousand, four hundred sixty".