641842025 has 24 divisors (see below), whose sum is σ = 905995584. Its totient is φ = 446494400.

The previous prime is 641842009. The next prime is 641842039. The reversal of 641842025 is 520248146.

641842025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 641842025 - 2⁴ = 641842009 is a prime.

It is a super-2 number, since 2×641842025² = 823922370112201250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 641841982 and 641842000.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44414 + ... + 57063.

It is an arithmetic number, because the mean of its divisors is an integer number (37749816).

Almost surely, 2^641842025 is an apocalyptic number.

It is an amenable number.

641842025 is a deficient number, since it is larger than the sum of its proper divisors (264153559).

641842025 is a wasteful number, since it uses less digits than its factorization.

641842025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101521 (or 101516 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 641842025 is about 25334.6013388804. The cubic root of 641842025 is about 862.5998596134.

The spelling of 641842025 in words is "six hundred forty-one million, eight hundred forty-two thousand, twenty-five".