75157057 has 4 divisors (see below), whose sum is σ = 75199936. Its totient is φ = 75114180.

The previous prime is 75157013. The next prime is 75157073. The reversal of 75157057 is 75075157.

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, and also an emirpimes, since its reverse is a distinct semiprime: 75075157 = 359 ⋅209123.

It is a cyclic number.

It is not a de Polignac number, because 75157057 - 2⁷ = 75156929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75157007) 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, 18693 + ... + 22354.

It is an arithmetic number, because the mean of its divisors is an integer number (18799984).

Almost surely, 2^75157057 is an apocalyptic number.

It is an amenable number.

75157057 is a deficient number, since it is larger than the sum of its proper divisors (42879).

75157057 is a wasteful number, since it uses less digits than its factorization.

75157057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42878.

The product of its (nonzero) digits is 42875, while the sum is 37.

The square root of 75157057 is about 8669.3169857838. The cubic root of 75157057 is about 422.0104985296.

The spelling of 75157057 in words is "seventy-five million, one hundred fifty-seven thousand, fifty-seven".