51254208 has 70 divisors (see below), whose sum is σ = 151948896. Its totient is φ = 17083008.

The previous prime is 51254207. The next prime is 51254239. The reversal of 51254208 is 80245215.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51254207) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 241 + ... + 10127.

Almost surely, 2^51254208 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 51254208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75974448).

51254208 is an abundant number, since it is smaller than the sum of its proper divisors (100694688).

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

51254208 is an equidigital number, since it uses as much as digits as its factorization.

51254208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9911 (or 9892 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 51254208 is about 7159.2044250741. The cubic root of 51254208 is about 371.4581079921.

The spelling of 51254208 in words is "fifty-one million, two hundred fifty-four thousand, two hundred eight".