51366460 has 12 divisors (see below), whose sum is σ = 107869608. Its totient is φ = 20546576.

The previous prime is 51366457. The next prime is 51366461. The reversal of 51366460 is 6466315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51366461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1284142 + ... + 1284181.

It is an arithmetic number, because the mean of its divisors is an integer number (8989134).

Almost surely, 2^51366460 is an apocalyptic number.

It is an amenable number.

51366460 is an abundant number, since it is smaller than the sum of its proper divisors (56503148).

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

51366460 is a wasteful number, since it uses less digits than its factorization.

51366460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2568332 (or 2568330 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 51366460 is about 7167.0398352458. The cubic root of 51366460 is about 371.7290874490.

The spelling of 51366460 in words is "fifty-one million, three hundred sixty-six thousand, four hundred sixty".