100025534500 has 24 divisors (see below), whose sum is σ = 218455768440. Its totient is φ = 40010213600.

The previous prime is 100025534491. The next prime is 100025534501. The reversal of 100025534500 is 5435520001.

It can be written as a sum of positive squares in 4 ways, for example, as 1449629476 + 98575905024 = 38074^2 + 313968^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (100025534501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100025035 + ... + 100026034.

It is an arithmetic number, because the mean of its divisors is an integer number (9102323685).

Almost surely, 2^100025534500 is an apocalyptic number.

100025534500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100025534500 is an abundant number, since it is smaller than the sum of its proper divisors (118430233940).

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

100025534500 is a wasteful number, since it uses less digits than its factorization.

100025534500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200051088 (or 200051076 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The spelling of 100025534500 in words is "one hundred billion, twenty-five million, five hundred thirty-four thousand, five hundred".