75305025 has 48 divisors (see below), whose sum is σ = 143145600. Its totient is φ = 38767680.

The previous prime is 75305003. The next prime is 75305033. The reversal of 75305025 is 52050357.

It is not a de Polignac number, because 75305025 - 2⁷ = 75304897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 75305025.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17652 + ... + 21498.

It is an arithmetic number, because the mean of its divisors is an integer number (2982200).

Almost surely, 2^75305025 is an apocalyptic number.

75305025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

75305025 is a deficient number, since it is larger than the sum of its proper divisors (67840575).

75305025 is a wasteful number, since it uses less digits than its factorization.

75305025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3895 (or 3884 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 27.

The square root of 75305025 is about 8677.8467951445. The cubic root of 75305025 is about 422.2872661285.

The spelling of 75305025 in words is "seventy-five million, three hundred five thousand, twenty-five".