51448415 has 8 divisors (see below), whose sum is σ = 62011440. Its totient is φ = 40976512.

The previous prime is 51448403. The next prime is 51448417. The reversal of 51448415 is 51484415.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51448415 - 2⁶ = 51448351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51448417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21530 + ... + 23799.

It is an arithmetic number, because the mean of its divisors is an integer number (7751430).

Almost surely, 2^51448415 is an apocalyptic number.

51448415 is a deficient number, since it is larger than the sum of its proper divisors (10563025).

51448415 is a wasteful number, since it uses less digits than its factorization.

51448415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45561.

The product of its digits is 12800, while the sum is 32.

The square root of 51448415 is about 7172.7550494911. The cubic root of 51448415 is about 371.9266798690.

The spelling of 51448415 in words is "fifty-one million, four hundred forty-eight thousand, four hundred fifteen".