51845888 has 72 divisors (see below), whose sum is σ = 109885440. Its totient is φ = 24376320.

The previous prime is 51845879. The next prime is 51845909. The reversal of 51845888 is 88854815.

It is a super-2 number, since 2×51845888² = 5375992205017088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372923 + ... + 373061.

Almost surely, 2^51845888 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 51845888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54942720).

51845888 is an abundant number, since it is smaller than the sum of its proper divisors (58039552).

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

51845888 is a wasteful number, since it uses less digits than its factorization.

51845888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 219 counting only the distinct ones).

The product of its digits is 409600, while the sum is 47.

The square root of 51845888 is about 7200.4088772791. The cubic root of 51845888 is about 372.8820169894.

The spelling of 51845888 in words is "fifty-one million, eight hundred forty-five thousand, eight hundred eighty-eight".