1925213656 has 8 divisors (see below), whose sum is σ = 3609775620. Its totient is φ = 962606824.

The previous prime is 1925213629. The next prime is 1925213659. The reversal of 1925213656 is 6563125291.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1925213659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120325846 + ... + 120325861.

Almost surely, 2^1925213656 is an apocalyptic number.

It is an amenable number.

1925213656 is a deficient number, since it is larger than the sum of its proper divisors (1684561964).

1925213656 is a wasteful number, since it uses less digits than its factorization.

1925213656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240651713 (or 240651709 counting only the distinct ones).

The product of its digits is 97200, while the sum is 40.

The square root of 1925213656 is about 43877.2567054961. The cubic root of 1925213656 is about 1244.0169884950.

The spelling of 1925213656 in words is "one billion, nine hundred twenty-five million, two hundred thirteen thousand, six hundred fifty-six".