19116825 has 48 divisors (see below), whose sum is σ = 38914176. Its totient is φ = 8064000.

The previous prime is 19116817. The next prime is 19116833. The reversal of 19116825 is 52861191.

It is an interprime number because it is at equal distance from previous prime (19116817) and next prime (19116833).

It is not a de Polignac number, because 19116825 - 2³ = 19116817 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5425 + ... + 8225.

It is an arithmetic number, because the mean of its divisors is an integer number (810712).

Almost surely, 2^19116825 is an apocalyptic number.

19116825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19116825 is an abundant number, since it is smaller than the sum of its proper divisors (19797351).

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

19116825 is a wasteful number, since it uses less digits than its factorization.

19116825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2834 (or 2829 counting only the distinct ones).

The product of its digits is 4320, while the sum is 33.

The square root of 19116825 is about 4372.2791539425. The cubic root of 19116825 is about 267.3859530724.

The spelling of 19116825 in words is "nineteen million, one hundred sixteen thousand, eight hundred twenty-five".