75409653 has 8 divisors (see below), whose sum is σ = 109686816. Its totient is φ = 45702800.

The previous prime is 75409601. The next prime is 75409661. The reversal of 75409653 is 35690457.

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

It is not a de Polignac number, because 75409653 - 2²¹ = 73312501 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75409673) 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, 1142538 + ... + 1142603.

It is an arithmetic number, because the mean of its divisors is an integer number (13710852).

Almost surely, 2^75409653 is an apocalyptic number.

It is an amenable number.

75409653 is a deficient number, since it is larger than the sum of its proper divisors (34277163).

75409653 is a wasteful number, since it uses less digits than its factorization.

75409653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285155.

The product of its (nonzero) digits is 113400, while the sum is 39.

The square root of 75409653 is about 8683.8731566047. The cubic root of 75409653 is about 422.4827494328.

The spelling of 75409653 in words is "seventy-five million, four hundred nine thousand, six hundred fifty-three".