75242485 has 4 divisors (see below), whose sum is σ = 90290988. Its totient is φ = 60193984.

The previous prime is 75242483. The next prime is 75242509. The reversal of 75242485 is 58424257.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44395569 + 30846916 = 6663^2 + 5554^2 .

It is a cyclic number.

It is not a de Polignac number, because 75242485 - 2¹ = 75242483 is a prime.

It is a super-2 number, since 2×75242485² = 11322863097950450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75242483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7524244 + ... + 7524253.

It is an arithmetic number, because the mean of its divisors is an integer number (22572747).

Almost surely, 2^75242485 is an apocalyptic number.

It is an amenable number.

75242485 is a deficient number, since it is larger than the sum of its proper divisors (15048503).

75242485 is a wasteful number, since it uses less digits than its factorization.

75242485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15048502.

The product of its digits is 89600, while the sum is 37.

The square root of 75242485 is about 8674.2426182347. The cubic root of 75242485 is about 422.1703320990.

The spelling of 75242485 in words is "seventy-five million, two hundred forty-two thousand, four hundred eighty-five".