801250000 has 80 divisors (see below), whose sum is σ = 1943549712. Its totient is φ = 320000000.

The previous prime is 801249997. The next prime is 801250027. The reversal of 801250000 is 52108.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 747256896 + 53993104 = 27336^2 + 7348^2 .

It is a sliding number, since 801250000 = 1250000 + 800000000 and 1/1250000 + 1/800000000 = 0.000000801250000.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1249680 + ... + 1250320.

Almost surely, 2^801250000 is an apocalyptic number.

801250000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 801250000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (971774856).

801250000 is an abundant number, since it is smaller than the sum of its proper divisors (1142299712).

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

801250000 is an frugal number, since it uses more digits than its factorization.

801250000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684 (or 648 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 801250000 is about 28306.3597094363. The cubic root of 801250000 is about 928.8010139554.

It can be divided in two parts, 80 and 1250000, that multiplied together give a 8-th power (100000000 = 10⁸).

The spelling of 801250000 in words is "eight hundred one million, two hundred fifty thousand".