1010100025 has 12 divisors (see below), whose sum is σ = 1366390224. Its totient is φ = 734618000.

The previous prime is 1010100019. The next prime is 1010100061. The reversal of 1010100025 is 5200010101.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1010100025 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1010099984 and 1010100020.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1836271 + ... + 1836820.

It is an arithmetic number, because the mean of its divisors is an integer number (113865852).

Almost surely, 2^1010100025 is an apocalyptic number.

It is an amenable number.

1010100025 is a deficient number, since it is larger than the sum of its proper divisors (356290199).

1010100025 is a wasteful number, since it uses less digits than its factorization.

1010100025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3673112 (or 3673107 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 1010100025 is about 31782.0708104428. The cubic root of 1010100025 is about 1003.3554036737.

Adding to 1010100025 its reverse (5200010101), we get a palindrome (6210110126).

The spelling of 1010100025 in words is "one billion, ten million, one hundred thousand, twenty-five".