75425 has 12 divisors (see below), whose sum is σ = 107136. Its totient is φ = 51600.

The previous prime is 75407. The next prime is 75431. The reversal of 75425 is 52457.

75425 = T₂₈ + T₂₉ + ... + T₇₇.

It is not a de Polignac number, because 75425 - 2⁸ = 75169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75425.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41 + ... + 390.

It is an arithmetic number, because the mean of its divisors is an integer number (8928).

2⁷⁵⁴²⁵ is an apocalyptic number.

It is an amenable number.

75425 is a deficient number, since it is larger than the sum of its proper divisors (31711).

75425 is a wasteful number, since it uses less digits than its factorization.

75425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448 (or 443 counting only the distinct ones).

The product of its digits is 1400, while the sum is 23.

The square root of 75425 is about 274.6361228972. The cubic root of 75425 is about 42.2511408023.

The spelling of 75425 in words is "seventy-five thousand, four hundred twenty-five".