82725001 has 4 divisors (see below), whose sum is σ = 82752532. Its totient is φ = 82697472.

The previous prime is 82724969. The next prime is 82725037. The reversal of 82725001 is 10052728.

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 47334400 + 35390601 = 6880^2 + 5949^2 .

It is a cyclic number.

It is not a de Polignac number, because 82725001 - 2⁵ = 82724969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82725061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8616 + ... + 15481.

It is an arithmetic number, because the mean of its divisors is an integer number (20688133).

Almost surely, 2^82725001 is an apocalyptic number.

It is an amenable number.

82725001 is a deficient number, since it is larger than the sum of its proper divisors (27531).

82725001 is a wasteful number, since it uses less digits than its factorization.

82725001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27530.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 82725001 is about 9095.3285262271. The cubic root of 82725001 is about 435.7247810681.

Adding to 82725001 its reverse (10052728), we get a palindrome (92777729).

The spelling of 82725001 in words is "eighty-two million, seven hundred twenty-five thousand, one".