19231925 has 12 divisors (see below), whose sum is σ = 23902116. Its totient is φ = 15350400.

The previous prime is 19231907. The next prime is 19231943. The reversal of 19231925 is 52913291.

It is an interprime number because it is at equal distance from previous prime (19231907) and next prime (19231943).

It can be written as a sum of positive squares in 6 ways, for example, as 5026564 + 14205361 = 2242^2 + 3769^2 .

It is not a de Polignac number, because 19231925 - 2¹⁴ = 19215541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 19231891 and 19231900.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 20057 + ... + 20993.

It is an arithmetic number, because the mean of its divisors is an integer number (1991843).

Almost surely, 2^19231925 is an apocalyptic number.

It is an amenable number.

19231925 is a deficient number, since it is larger than the sum of its proper divisors (4670191).

19231925 is an equidigital number, since it uses as much as digits as its factorization.

19231925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768 (or 1763 counting only the distinct ones).

The product of its digits is 4860, while the sum is 32.

The square root of 19231925 is about 4385.4218725226. The cubic root of 19231925 is about 267.9215120645.

The spelling of 19231925 in words is "nineteen million, two hundred thirty-one thousand, nine hundred twenty-five".