51464634 has 32 divisors (see below), whose sum is σ = 112420224. Its totient is φ = 15610560.

The previous prime is 51464603. The next prime is 51464641. The reversal of 51464634 is 43646415.

It is a junction number, because it is equal to n+sod(n) for n = 51464595 and 51464604.

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, 892 + ... + 10184.

It is an arithmetic number, because the mean of its divisors is an integer number (3513132).

Almost surely, 2^51464634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51464634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56210112).

51464634 is an abundant number, since it is smaller than the sum of its proper divisors (60955590).

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

51464634 is a wasteful number, since it uses less digits than its factorization.

51464634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9382.

The product of its digits is 34560, while the sum is 33.

The square root of 51464634 is about 7173.8855580501. The cubic root of 51464634 is about 371.9657587861.

The spelling of 51464634 in words is "fifty-one million, four hundred sixty-four thousand, six hundred thirty-four".