19772325 has 18 divisors (see below), whose sum is σ = 35414834. Its totient is φ = 10545120.

The previous prime is 19772323. The next prime is 19772351. The reversal of 19772325 is 52327791.

It can be written as a sum of positive squares in 3 ways, for example, as 3272481 + 16499844 = 1809^2 + 4062^2 .

It is not a de Polignac number, because 19772325 - 2¹ = 19772323 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 19772325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19772321) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 43714 + ... + 44163.

Almost surely, 2^19772325 is an apocalyptic number.

19772325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19772325 is a deficient number, since it is larger than the sum of its proper divisors (15642509).

19772325 is a wasteful number, since it uses less digits than its factorization.

19772325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87893 (or 87885 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 19772325 is about 4446.6082579872. The cubic root of 19772325 is about 270.4078199147.

The spelling of 19772325 in words is "nineteen million, seven hundred seventy-two thousand, three hundred twenty-five".