82799025 has 12 divisors (see below), whose sum is σ = 136894512. Its totient is φ = 44159440.

The previous prime is 82798927. The next prime is 82799029. The reversal of 82799025 is 52099728.

It is not a de Polignac number, because 82799025 - 2⁷ = 82798897 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (82799029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 551919 + ... + 552068.

It is an arithmetic number, because the mean of its divisors is an integer number (11407876).

Almost surely, 2^82799025 is an apocalyptic number.

It is an amenable number.

82799025 is a deficient number, since it is larger than the sum of its proper divisors (54095487).

82799025 is a wasteful number, since it uses less digits than its factorization.

82799025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104000 (or 1103995 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 82799025 is about 9099.3969580407. The cubic root of 82799025 is about 435.8547074308.

The spelling of 82799025 in words is "eighty-two million, seven hundred ninety-nine thousand, twenty-five".