109435425 has 72 divisors (see below), whose sum is σ = 205820160. Its totient is φ = 51216000.

The previous prime is 109435397. The next prime is 109435433. The reversal of 109435425 is 524534901.

It is not a de Polignac number, because 109435425 - 2⁵ = 109435393 is a prime.

It is a super-2 number, since 2×109435425² = 23952224489861250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 281131 + ... + 281519.

Almost surely, 2^109435425 is an apocalyptic number.

109435425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

109435425 is a deficient number, since it is larger than the sum of its proper divisors (96384735).

109435425 is a wasteful number, since it uses less digits than its factorization.

109435425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455 (or 439 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 109435425 is about 10461.1388003410. The cubic root of 109435425 is about 478.3208471882.

It can be divided in two parts, 109 and 435425, that added together give a palindrome (435534).

The spelling of 109435425 in words is "one hundred nine million, four hundred thirty-five thousand, four hundred twenty-five".