1925604361 has 4 divisors (see below), whose sum is σ = 1926171972. Its totient is φ = 1925036752.

The previous prime is 1925604349. The next prime is 1925604409. The reversal of 1925604361 is 1634065291.

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 1888771600 + 36832761 = 43460^2 + 6069^2 .

It is a cyclic number.

It is not a de Polignac number, because 1925604361 - 2¹¹ = 1925602313 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 1925604361.

It is not an unprimeable number, because it can be changed into a prime (1925604301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278686 + ... + 285511.

It is an arithmetic number, because the mean of its divisors is an integer number (481542993).

Almost surely, 2^1925604361 is an apocalyptic number.

It is an amenable number.

1925604361 is a deficient number, since it is larger than the sum of its proper divisors (567611).

1925604361 is an equidigital number, since it uses as much as digits as its factorization.

1925604361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567610.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 1925604361 is about 43881.7087292644. The cubic root of 1925604361 is about 1244.1011368665.

The spelling of 1925604361 in words is "one billion, nine hundred twenty-five million, six hundred four thousand, three hundred sixty-one".