42500000800 has 36 divisors (see below), whose sum is σ = 103753128906. Its totient is φ = 17000000000.

The previous prime is 42500000729. The next prime is 42500000819. The reversal of 42500000800 is 800000524.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 25104501136 + 17395499664 = 158444^2 + 131892^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26561701 + ... + 26563300.

Almost surely, 2^42500000800 is an apocalyptic number.

42500000800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42500000800 is an abundant number, since it is smaller than the sum of its proper divisors (61253128106).

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

42500000800 is a wasteful number, since it uses less digits than its factorization.

42500000800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53125021 (or 53125008 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The spelling of 42500000800 in words is "forty-two billion, five hundred million, eight hundred", and thus it is an aban number.