75553630133 has 4 divisors (see below), whose sum is σ = 75575413260. Its totient is φ = 75531847008.

The previous prime is 75553630121. The next prime is 75553630153. The reversal of 75553630133 is 33103635557.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33103635557 = 487 ⋅67974611.

It can be written as a sum of positive squares in 2 ways, for example, as 10884122929 + 64669507204 = 104327^2 + 254302^2 .

It is a cyclic number.

It is not a de Polignac number, because 75553630133 - 2²⁴ = 75536852917 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 (75553630153) 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, 10886360 + ... + 10893297.

It is an arithmetic number, because the mean of its divisors is an integer number (18893853315).

Almost surely, 2^75553630133 is an apocalyptic number.

It is an amenable number.

75553630133 is a deficient number, since it is larger than the sum of its proper divisors (21783127).

75553630133 is a wasteful number, since it uses less digits than its factorization.

75553630133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21783126.

The product of its (nonzero) digits is 425250, while the sum is 41.

The spelling of 75553630133 in words is "seventy-five billion, five hundred fifty-three million, six hundred thirty thousand, one hundred thirty-three".