51448266 has 48 divisors (see below), whose sum is σ = 114566400. Its totient is φ = 16679520.

The previous prime is 51448261. The next prime is 51448277. The reversal of 51448266 is 66284415.

51448266 is a `hidden beast` number, since 514 + 4 + 82 + 66 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 51448266.

It is not an unprimeable number, because it can be changed into a prime (51448261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 189711 + ... + 189981.

It is an arithmetic number, because the mean of its divisors is an integer number (2386800).

Almost surely, 2^51448266 is an apocalyptic number.

51448266 is an abundant number, since it is smaller than the sum of its proper divisors (63118134).

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

51448266 is a wasteful number, since it uses less digits than its factorization.

51448266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531 (or 528 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 51448266 is about 7172.7446629585. The cubic root of 51448266 is about 371.9263208224.

The spelling of 51448266 in words is "fifty-one million, four hundred forty-eight thousand, two hundred sixty-six".