75125430 has 48 divisors (see below), whose sum is σ = 205611120. Its totient is φ = 18978624.

The previous prime is 75125389. The next prime is 75125459. The reversal of 75125430 is 3452157.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 75125394 and 75125403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20257 + ... + 23676.

It is an arithmetic number, because the mean of its divisors is an integer number (4283565).

Almost surely, 2^75125430 is an apocalyptic number.

75125430 is an abundant number, since it is smaller than the sum of its proper divisors (130485690).

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

75125430 is a wasteful number, since it uses less digits than its factorization.

75125430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43965 (or 43962 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 75125430 is about 8667.4927170434. The cubic root of 75125430 is about 421.9512945143.

Adding to 75125430 its reverse (3452157), we get a palindrome (78577587).

The spelling of 75125430 in words is "seventy-five million, one hundred twenty-five thousand, four hundred thirty".