1825307641 has 4 divisors (see below), whose sum is σ = 1825397392. Its totient is φ = 1825217892.

The previous prime is 1825307633. The next prime is 1825307699. The reversal of 1825307641 is 1467035281.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1825307641 - 2³ = 1825307633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1825307641.

It is not an unprimeable number, because it can be changed into a prime (1825307041) 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, 1846 + ... + 60448.

It is an arithmetic number, because the mean of its divisors is an integer number (456349348).

Almost surely, 2^1825307641 is an apocalyptic number.

It is an amenable number.

1825307641 is a deficient number, since it is larger than the sum of its proper divisors (89751).

1825307641 is an equidigital number, since it uses as much as digits as its factorization.

1825307641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89750.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 1825307641 is about 42723.6192404155. The cubic root of 1825307641 is about 1222.1148575077.

The spelling of 1825307641 in words is "one billion, eight hundred twenty-five million, three hundred seven thousand, six hundred forty-one".