75275157 has 4 divisors (see below), whose sum is σ = 100366880. Its totient is φ = 50183436.

The previous prime is 75275149. The next prime is 75275171. The reversal of 75275157 is 75157257.

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 not a de Polignac number, because 75275157 - 2³ = 75275149 is a prime.

It is a super-2 number, since 2×75275157² = 11332698522749298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75275117) 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, 12545857 + ... + 12545862.

It is an arithmetic number, because the mean of its divisors is an integer number (25091720).

Almost surely, 2^75275157 is an apocalyptic number.

It is an amenable number.

75275157 is a deficient number, since it is larger than the sum of its proper divisors (25091723).

75275157 is a wasteful number, since it uses less digits than its factorization.

75275157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25091722.

The product of its digits is 85750, while the sum is 39.

The square root of 75275157 is about 8676.1256906525. The cubic root of 75275157 is about 422.2314285799.

The spelling of 75275157 in words is "seventy-five million, two hundred seventy-five thousand, one hundred fifty-seven".