51152646 has 32 divisors (see below), whose sum is σ = 104659200. Its totient is φ = 16662240.

The previous prime is 51152603. The next prime is 51152663. The reversal of 51152646 is 64625115.

It is a Curzon number.

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, 80751 + ... + 81381.

It is an arithmetic number, because the mean of its divisors is an integer number (3270600).

Almost surely, 2^51152646 is an apocalyptic number.

51152646 is an abundant number, since it is smaller than the sum of its proper divisors (53506554).

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

51152646 is a wasteful number, since it uses less digits than its factorization.

51152646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924.

The product of its digits is 7200, while the sum is 30.

The square root of 51152646 is about 7152.1078012010. The cubic root of 51152646 is about 371.2125933584.

The spelling of 51152646 in words is "fifty-one million, one hundred fifty-two thousand, six hundred forty-six".