51448912 has 20 divisors (see below), whose sum is σ = 100653280. Its totient is φ = 25473888.

The previous prime is 51448909. The next prime is 51448913. The reversal of 51448912 is 21984415.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51448913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13962 + ... + 17257.

It is an arithmetic number, because the mean of its divisors is an integer number (5032664).

Almost surely, 2^51448912 is an apocalyptic number.

It is an amenable number.

51448912 is a deficient number, since it is larger than the sum of its proper divisors (49204368).

51448912 is a wasteful number, since it uses less digits than its factorization.

51448912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31330 (or 31324 counting only the distinct ones).

The product of its digits is 11520, while the sum is 34.

The square root of 51448912 is about 7172.7896943937. The cubic root of 51448912 is about 371.9278774890.

The spelling of 51448912 in words is "fifty-one million, four hundred forty-eight thousand, nine hundred twelve".