19425056 has 24 divisors (see below), whose sum is σ = 43706880. Its totient is φ = 8324928.

The previous prime is 19425047. The next prime is 19425059. The reversal of 19425056 is 65052491.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19425059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43136 + ... + 43583.

It is an arithmetic number, because the mean of its divisors is an integer number (1821120).

Almost surely, 2^19425056 is an apocalyptic number.

19425056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19425056 is an abundant number, since it is smaller than the sum of its proper divisors (24281824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19425056 is an equidigital number, since it uses as much as digits as its factorization.

19425056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86736 (or 86728 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 19425056 is about 4407.3865271837. The cubic root of 19425056 is about 268.8153678383.

The spelling of 19425056 in words is "nineteen million, four hundred twenty-five thousand, fifty-six".