75253381 has 8 divisors (see below), whose sum is σ = 86068800. Its totient is φ = 64454208.

The previous prime is 75253369. The next prime is 75253391. The reversal of 75253381 is 18335257.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 75253381 - 2⁹ = 75252869 is a prime.

It is a super-2 number, since 2×75253381² = 11326142703862322, 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 (75253331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8445 + ... + 14893.

It is an arithmetic number, because the mean of its divisors is an integer number (10758600).

Almost surely, 2^75253381 is an apocalyptic number.

It is an amenable number.

75253381 is a deficient number, since it is larger than the sum of its proper divisors (10815419).

75253381 is a wasteful number, since it uses less digits than its factorization.

75253381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8123.

The product of its digits is 25200, while the sum is 34.

The square root of 75253381 is about 8674.8706618600. The cubic root of 75253381 is about 422.1907095312.

The spelling of 75253381 in words is "seventy-five million, two hundred fifty-three thousand, three hundred eighty-one".