19225564 has 6 divisors (see below), whose sum is σ = 33644744. Its totient is φ = 9612780.

The previous prime is 19225561. The next prime is 19225567. The reversal of 19225564 is 46552291.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (19225561) and next prime (19225567).

It is a super-2 number, since 2×19225564² = 739244622236192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19225561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2403192 + ... + 2403199.

Almost surely, 2^19225564 is an apocalyptic number.

It is an amenable number.

19225564 is a deficient number, since it is larger than the sum of its proper divisors (14419180).

19225564 is a wasteful number, since it uses less digits than its factorization.

19225564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4806395 (or 4806393 counting only the distinct ones).

The product of its digits is 21600, while the sum is 34.

The square root of 19225564 is about 4384.6965687491. The cubic root of 19225564 is about 267.8919702710.

The spelling of 19225564 in words is "nineteen million, two hundred twenty-five thousand, five hundred sixty-four".