5211651800 has 48 divisors (see below), whose sum is σ = 12507979200. Its totient is φ = 2017411200.

The previous prime is 5211651791. The next prime is 5211651817. The reversal of 5211651800 is 81561125.

It is a super-2 number, since 2×5211651800² = 54322628968886480000, 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 (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 414095 + ... + 426494.

It is an arithmetic number, because the mean of its divisors is an integer number (260582900).

Almost surely, 2^5211651800 is an apocalyptic number.

5211651800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5211651800 is an abundant number, since it is smaller than the sum of its proper divisors (7296327400).

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

5211651800 is a wasteful number, since it uses less digits than its factorization.

5211651800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840636 (or 840627 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 29.

The square root of 5211651800 is about 72191.7709991935. The cubic root of 5211651800 is about 1733.7712511216.

The spelling of 5211651800 in words is "five billion, two hundred eleven million, six hundred fifty-one thousand, eight hundred".