1925987533 has 4 divisors (see below), whose sum is σ = 1935115648. Its totient is φ = 1916859420.

The previous prime is 1925987519. The next prime is 1925987549. The reversal of 1925987533 is 3357895291.

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.

It is a cyclic number.

It is not a de Polignac number, because 1925987533 - 2²⁹ = 1389116621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1925987033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4563741 + ... + 4564162.

It is an arithmetic number, because the mean of its divisors is an integer number (483778912).

Almost surely, 2^1925987533 is an apocalyptic number.

It is an amenable number.

1925987533 is a deficient number, since it is larger than the sum of its proper divisors (9128115).

1925987533 is an equidigital number, since it uses as much as digits as its factorization.

1925987533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9128114.

The product of its digits is 2041200, while the sum is 52.

The square root of 1925987533 is about 43886.0744769910. The cubic root of 1925987533 is about 1244.1836517580.

The spelling of 1925987533 in words is "one billion, nine hundred twenty-five million, nine hundred eighty-seven thousand, five hundred thirty-three".