51254448 has 80 divisors (see below), whose sum is σ = 152894976. Its totient is φ = 14492160.

The previous prime is 51254429. The next prime is 51254449. The reversal of 51254448 is 84445215.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51254449) 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, 33868 + ... + 35348.

Almost surely, 2^51254448 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 51254448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76447488).

51254448 is an abundant number, since it is smaller than the sum of its proper divisors (101640528).

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

51254448 is a wasteful number, since it uses less digits than its factorization.

51254448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602 (or 1596 counting only the distinct ones).

The product of its digits is 25600, while the sum is 33.

The square root of 51254448 is about 7159.2211866934. The cubic root of 51254448 is about 371.4586877806.

The spelling of 51254448 in words is "fifty-one million, two hundred fifty-four thousand, four hundred forty-eight".