51498688 has 56 divisors (see below), whose sum is σ = 106948224. Its totient is φ = 24576000.

The previous prime is 51498677. The next prime is 51498691. The reversal of 51498688 is 88689415.

It is a super-2 number, since 2×51498688² = 5304229731442688, which contains 22 as substring.

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, 200256 + ... + 200512.

Almost surely, 2^51498688 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 51498688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53474112).

51498688 is an abundant number, since it is smaller than the sum of its proper divisors (55449536).

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

51498688 is a wasteful number, since it uses less digits than its factorization.

51498688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401 (or 391 counting only the distinct ones).

The product of its digits is 552960, while the sum is 49.

The square root of 51498688 is about 7176.2586352500. The cubic root of 51498688 is about 372.0477835871.

The spelling of 51498688 in words is "fifty-one million, four hundred ninety-eight thousand, six hundred eighty-eight".