193225725 has 144 divisors (see below), whose sum is σ = 454970880. Its totient is φ = 75945600.

The previous prime is 193225699. The next prime is 193225727. The reversal of 193225725 is 527522391.

It is not a de Polignac number, because 193225725 - 2⁵ = 193225693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 193225725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193225727) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 328882 + ... + 329468.

It is an arithmetic number, because the mean of its divisors is an integer number (3159520).

Almost surely, 2^193225725 is an apocalyptic number.

193225725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

193225725 is an abundant number, since it is smaller than the sum of its proper divisors (261745155).

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

193225725 is a wasteful number, since it uses less digits than its factorization.

193225725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640 (or 632 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 193225725 is about 13900.5656359732. The cubic root of 193225725 is about 578.1248647674.

The spelling of 193225725 in words is "one hundred ninety-three million, two hundred twenty-five thousand, seven hundred twenty-five".