51265632 has 96 divisors (see below), whose sum is σ = 150353280. Its totient is φ = 15160320.

The previous prime is 51265607. The next prime is 51265633. The reversal of 51265632 is 23656215.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 51265632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51265633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44844 + ... + 45972.

It is an arithmetic number, because the mean of its divisors is an integer number (1566180).

Almost surely, 2^51265632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51265632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75176640).

51265632 is an abundant number, since it is smaller than the sum of its proper divisors (99087648).

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

51265632 is a wasteful number, since it uses less digits than its factorization.

51265632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196 (or 1188 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

The square root of 51265632 is about 7160.0022346365. The cubic root of 51265632 is about 371.4857039193.

The spelling of 51265632 in words is "fifty-one million, two hundred sixty-five thousand, six hundred thirty-two".