75380249 has 4 divisors (see below), whose sum is σ = 86148864. Its totient is φ = 64611636.

The previous prime is 75380243. The next prime is 75380267. The reversal of 75380249 is 94208357.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94208357 = 223 ⋅422459.

It is a cyclic number.

It is not a de Polignac number, because 75380249 - 2¹² = 75376153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75380243) 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, 5384297 + ... + 5384310.

It is an arithmetic number, because the mean of its divisors is an integer number (21537216).

Almost surely, 2^75380249 is an apocalyptic number.

It is an amenable number.

75380249 is a deficient number, since it is larger than the sum of its proper divisors (10768615).

75380249 is a wasteful number, since it uses less digits than its factorization.

75380249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10768614.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 75380249 is about 8682.1799681877. The cubic root of 75380249 is about 422.4278303022.

The spelling of 75380249 in words is "seventy-five million, three hundred eighty thousand, two hundred forty-nine".