75225430 has 16 divisors (see below), whose sum is σ = 154749600. Its totient is φ = 25791552.

The previous prime is 75225407. The next prime is 75225457. The reversal of 75225430 is 3452257.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537255 + ... + 537394.

It is an arithmetic number, because the mean of its divisors is an integer number (9671850).

Almost surely, 2^75225430 is an apocalyptic number.

75225430 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

75225430 is an abundant number, since it is smaller than the sum of its proper divisors (79524170).

75225430 is a wasteful number, since it uses less digits than its factorization.

75225430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074663.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 75225430 is about 8673.2594795728. The cubic root of 75225430 is about 422.1384323060.

Adding to 75225430 its reverse (3452257), we get a palindrome (78677687).

The spelling of 75225430 in words is "seventy-five million, two hundred twenty-five thousand, four hundred thirty".