75506653 has 4 divisors (see below), whose sum is σ = 75970048. Its totient is φ = 75043260.

The previous prime is 75506623. The next prime is 75506657. The reversal of 75506653 is 35660557.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75506653 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 (75506657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231453 + ... + 231778.

It is an arithmetic number, because the mean of its divisors is an integer number (18992512).

Almost surely, 2^75506653 is an apocalyptic number.

It is an amenable number.

75506653 is a deficient number, since it is larger than the sum of its proper divisors (463395).

75506653 is a wasteful number, since it uses less digits than its factorization.

75506653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463394.

The product of its (nonzero) digits is 94500, while the sum is 37.

The square root of 75506653 is about 8689.4564271881. The cubic root of 75506653 is about 422.6638193900.

The spelling of 75506653 in words is "seventy-five million, five hundred six thousand, six hundred fifty-three".