75252389 has 4 divisors (see below), whose sum is σ = 78524256. Its totient is φ = 71980524.

The previous prime is 75252383. The next prime is 75252409. The reversal of 75252389 is 98325257.

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: 98325257 = 41 ⋅2398177.

It is not a de Polignac number, because 75252389 - 2²⁰ = 74203813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75252383) 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, 1635899 + ... + 1635944.

It is an arithmetic number, because the mean of its divisors is an integer number (19631064).

Almost surely, 2^75252389 is an apocalyptic number.

It is an amenable number.

75252389 is a deficient number, since it is larger than the sum of its proper divisors (3271867).

75252389 is a wasteful number, since it uses less digits than its factorization.

75252389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3271866.

The product of its digits is 151200, while the sum is 41.

The square root of 75252389 is about 8674.8134850266. The cubic root of 75252389 is about 422.1888543985.

The spelling of 75252389 in words is "seventy-five million, two hundred fifty-two thousand, three hundred eighty-nine".