651200000 has 240 divisors, whose sum is σ = 1822102128. Its totient is φ = 230400000.

The previous prime is 651199999. The next prime is 651200023. The reversal of 651200000 is 2156.

It is a super-2 number, since 2×651200000² = 848122880000000000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17599982 + ... + 17600018.

Almost surely, 2^651200000 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 651200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (911051064).

651200000 is an abundant number, since it is smaller than the sum of its proper divisors (1170902128).

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

651200000 is an frugal number, since it uses more digits than its factorization.

651200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91 (or 55 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 651200000 is about 25518.6206523785. The cubic root of 651200000 is about 866.7718478524.

Adding to 651200000 its reverse (2156), we get a palindrome (651202156).

The spelling of 651200000 in words is "six hundred fifty-one million, two hundred thousand".