51463630 has 16 divisors (see below), whose sum is σ = 92799504. Its totient is φ = 20548800.

The previous prime is 51463619. The next prime is 51463649. The reversal of 51463630 is 3636415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1729 + ... + 10291.

It is an arithmetic number, because the mean of its divisors is an integer number (5799969).

Almost surely, 2^51463630 is an apocalyptic number.

51463630 is a deficient number, since it is larger than the sum of its proper divisors (41335874).

51463630 is a wasteful number, since it uses less digits than its factorization.

51463630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9171.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 51463630 is about 7173.8155816832. The cubic root of 51463630 is about 371.9633399338.

The spelling of 51463630 in words is "fifty-one million, four hundred sixty-three thousand, six hundred thirty".