19425601 has 8 divisors (see below), whose sum is σ = 20974464. Its totient is φ = 17884560.

The previous prime is 19425599. The next prime is 19425647. The reversal of 19425601 is 10652491.

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 19425601 - 2¹ = 19425599 is a prime.

It is a super-2 number, since 2×19425601² = 754707948422402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19425601.

It is not an unprimeable number, because it can be changed into a prime (19425001) 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, 3870 + ... + 7336.

It is an arithmetic number, because the mean of its divisors is an integer number (2621808).

Almost surely, 2^19425601 is an apocalyptic number.

It is an amenable number.

19425601 is a deficient number, since it is larger than the sum of its proper divisors (1548863).

19425601 is a wasteful number, since it uses less digits than its factorization.

19425601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3911.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 19425601 is about 4407.4483547740. The cubic root of 19425601 is about 268.8178818251.

The spelling of 19425601 in words is "nineteen million, four hundred twenty-five thousand, six hundred one".