75538357 has 4 divisors (see below), whose sum is σ = 79514080. Its totient is φ = 71562636.

The previous prime is 75538343. The next prime is 75538439. The reversal of 75538357 is 75383557.

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-75538357 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 (75535357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1987833 + ... + 1987870.

It is an arithmetic number, because the mean of its divisors is an integer number (19878520).

Almost surely, 2^75538357 is an apocalyptic number.

It is an amenable number.

75538357 is a deficient number, since it is larger than the sum of its proper divisors (3975723).

75538357 is a wasteful number, since it uses less digits than its factorization.

75538357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3975722.

The product of its digits is 441000, while the sum is 43.

The square root of 75538357 is about 8691.2805155512. The cubic root of 75538357 is about 422.7229676378.

The spelling of 75538357 in words is "seventy-five million, five hundred thirty-eight thousand, three hundred fifty-seven".