1925621564 has 12 divisors (see below), whose sum is σ = 3370261944. Its totient is φ = 962689584.

The previous prime is 1925621561. The next prime is 1925621591. The reversal of 1925621564 is 4651265291.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1925621561) 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, 12014 + ... + 63210.

It is an arithmetic number, because the mean of its divisors is an integer number (280855162).

Almost surely, 2^1925621564 is an apocalyptic number.

It is an amenable number.

1925621564 is a deficient number, since it is larger than the sum of its proper divisors (1444640380).

1925621564 is a wasteful number, since it uses less digits than its factorization.

1925621564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60604 (or 60602 counting only the distinct ones).

The product of its digits is 129600, while the sum is 41.

The square root of 1925621564 is about 43881.9047444388. The cubic root of 1925621564 is about 1244.1048417134.

The spelling of 1925621564 in words is "one billion, nine hundred twenty-five million, six hundred twenty-one thousand, five hundred sixty-four".