51650684 has 6 divisors (see below), whose sum is σ = 90388704. Its totient is φ = 25825340.

The previous prime is 51650671. The next prime is 51650723. The reversal of 51650684 is 48605615.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6456332 + ... + 6456339.

It is an arithmetic number, because the mean of its divisors is an integer number (15064784).

Almost surely, 2^51650684 is an apocalyptic number.

It is an amenable number.

51650684 is a deficient number, since it is larger than the sum of its proper divisors (38738020).

51650684 is a wasteful number, since it uses less digits than its factorization.

51650684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12912675 (or 12912673 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 51650684 is about 7186.8410306615. The cubic root of 51650684 is about 372.4134513576.

The spelling of 51650684 in words is "fifty-one million, six hundred fifty thousand, six hundred eighty-four".