99625503785 has 4 divisors (see below), whose sum is σ = 119550604548. Its totient is φ = 79700403024.

The previous prime is 99625503763. The next prime is 99625503797. The reversal of 99625503785 is 58730552699.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 62750751001 + 36874752784 = 250501^2 + 192028^2 .

It is a cyclic number.

It is not a de Polignac number, because 99625503785 - 2¹⁰ = 99625502761 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9962550374 + ... + 9962550383.

It is an arithmetic number, because the mean of its divisors is an integer number (29887651137).

Almost surely, 2^99625503785 is an apocalyptic number.

It is an amenable number.

99625503785 is a deficient number, since it is larger than the sum of its proper divisors (19925100763).

99625503785 is a wasteful number, since it uses less digits than its factorization.

99625503785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19925100762.

The product of its (nonzero) digits is 20412000, while the sum is 59.

The spelling of 99625503785 in words is "ninety-nine billion, six hundred twenty-five million, five hundred three thousand, seven hundred eighty-five".