51448963 has 4 divisors (see below), whose sum is σ = 51670008. Its totient is φ = 51227920.

The previous prime is 51448939. The next prime is 51448967. The reversal of 51448963 is 36984415.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51448963 - 2⁵ = 51448931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51448967) 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, 110173 + ... + 110638.

It is an arithmetic number, because the mean of its divisors is an integer number (12917502).

Almost surely, 2^51448963 is an apocalyptic number.

51448963 is a deficient number, since it is larger than the sum of its proper divisors (221045).

51448963 is a wasteful number, since it uses less digits than its factorization.

51448963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221044.

The product of its digits is 103680, while the sum is 40.

The square root of 51448963 is about 7172.7932494949. The cubic root of 51448963 is about 371.9280003832.

The spelling of 51448963 in words is "fifty-one million, four hundred forty-eight thousand, nine hundred sixty-three".