19925995 has 8 divisors (see below), whose sum is σ = 23999184. Its totient is φ = 15882144.

The previous prime is 19925993. The next prime is 19925999. The reversal of 19925995 is 59952991.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19925995 - 2¹ = 19925993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19925993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5809 + ... + 8578.

It is an arithmetic number, because the mean of its divisors is an integer number (2999898).

Almost surely, 2^19925995 is an apocalyptic number.

19925995 is a deficient number, since it is larger than the sum of its proper divisors (4073189).

19925995 is a wasteful number, since it uses less digits than its factorization.

19925995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14669.

The product of its digits is 328050, while the sum is 49.

The square root of 19925995 is about 4463.8542762953. The cubic root of 19925995 is about 271.1065470668.

The spelling of 19925995 in words is "nineteen million, nine hundred twenty-five thousand, nine hundred ninety-five".