99025780 has 48 divisors (see below), whose sum is σ = 245339136. Its totient is φ = 32855040.

The previous prime is 99025733. The next prime is 99025781. The reversal of 99025780 is 8752099.

It is a super-2 number, since 2×99025780² = 19612210209216800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99025781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7069 + ... + 15748.

It is an arithmetic number, because the mean of its divisors is an integer number (5111232).

Almost surely, 2^99025780 is an apocalyptic number.

It is an amenable number.

99025780 is an abundant number, since it is smaller than the sum of its proper divisors (146313356).

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

99025780 is a wasteful number, since it uses less digits than its factorization.

99025780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22864 (or 22862 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 99025780 is about 9951.1697804831. The cubic root of 99025780 is about 462.6466523006.

The spelling of 99025780 in words is "ninety-nine million, twenty-five thousand, seven hundred eighty".