51848400 has 60 divisors (see below), whose sum is σ = 166091552. Its totient is φ = 13825920.

The previous prime is 51848387. The next prime is 51848429. The reversal of 51848400 is 484815.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (30).

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 11 ways as a sum of consecutive naturals, for example, 20404 + ... + 22803.

Almost surely, 2^51848400 is an apocalyptic number.

51848400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51848400 is an abundant number, since it is smaller than the sum of its proper divisors (114243152).

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

51848400 is a wasteful number, since it uses less digits than its factorization.

51848400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43228 (or 43217 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 51848400 is about 7200.5833097048. The cubic root of 51848400 is about 372.8880390967. Note that the first 3 decimals are identical.

The spelling of 51848400 in words is "fifty-one million, eight hundred forty-eight thousand, four hundred".