51907248 has 60 divisors (see below), whose sum is σ = 147343248. Its totient is φ = 17055360.

The previous prime is 51907243. The next prime is 51907249. The reversal of 51907248 is 84270915.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (51907241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7686 + ... + 12762.

Almost surely, 2^51907248 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 51907248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73671624).

51907248 is an abundant number, since it is smaller than the sum of its proper divisors (95436000).

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

51907248 is a wasteful number, since it uses less digits than its factorization.

51907248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5162 (or 5153 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 51907248 is about 7204.6684864746. The cubic root of 51907248 is about 373.0290618895.

The spelling of 51907248 in words is "fifty-one million, nine hundred seven thousand, two hundred forty-eight".