51488948 has 24 divisors (see below), whose sum is σ = 105491904. Its totient is φ = 21528000.

The previous prime is 51488893. The next prime is 51488959. The reversal of 51488948 is 84988415.

It is a happy number.

It is a super-2 number, since 2×51488948² = 5302223532293408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21278 + ... + 23573.

It is an arithmetic number, because the mean of its divisors is an integer number (4395496).

Almost surely, 2^51488948 is an apocalyptic number.

It is an amenable number.

51488948 is an abundant number, since it is smaller than the sum of its proper divisors (54002956).

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

51488948 is a wasteful number, since it uses less digits than its factorization.

51488948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44903 (or 44901 counting only the distinct ones).

The product of its digits is 368640, while the sum is 47.

The square root of 51488948 is about 7175.5799765594. The cubic root of 51488948 is about 372.0243268479.

The spelling of 51488948 in words is "fifty-one million, four hundred eighty-eight thousand, nine hundred forty-eight".