75505351 has 4 divisors (see below), whose sum is σ = 75525912. Its totient is φ = 75484792.

The previous prime is 75505333. The next prime is 75505361. The reversal of 75505351 is 15350557.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15350557 = 229 ⋅67033.

It is a cyclic number.

It is not a de Polignac number, because 75505351 - 2⁵ = 75505319 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 (75505301) 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, 3100 + ... + 12673.

It is an arithmetic number, because the mean of its divisors is an integer number (18881478).

Almost surely, 2^75505351 is an apocalyptic number.

75505351 is a deficient number, since it is larger than the sum of its proper divisors (20561).

75505351 is a wasteful number, since it uses less digits than its factorization.

75505351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20560.

The product of its (nonzero) digits is 13125, while the sum is 31.

The square root of 75505351 is about 8689.3815084849. The cubic root of 75505351 is about 422.6613899729.

The spelling of 75505351 in words is "seventy-five million, five hundred five thousand, three hundred fifty-one".