51006460 has 48 divisors (see below), whose sum is σ = 116212320. Its totient is φ = 18728960.

The previous prime is 51006457. The next prime is 51006481. The reversal of 51006460 is 6460015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12111 + ... + 15769.

It is an arithmetic number, because the mean of its divisors is an integer number (2421090).

Almost surely, 2^51006460 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51006460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58106160).

51006460 is an abundant number, since it is smaller than the sum of its proper divisors (65205860).

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

51006460 is a wasteful number, since it uses less digits than its factorization.

51006460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3726 (or 3724 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 51006460 is about 7141.8807046884. The cubic root of 51006460 is about 370.8586340801.

Adding to 51006460 its reverse (6460015), we get a palindrome (57466475).

The spelling of 51006460 in words is "fifty-one million, six thousand, four hundred sixty".