75025857 has 4 divisors (see below), whose sum is σ = 100034480. Its totient is φ = 50017236.

The previous prime is 75025849. The next prime is 75025877. The reversal of 75025857 is 75852057.

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: 75852057 = 3 ⋅25284019.

It is not a de Polignac number, because 75025857 - 2³ = 75025849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75025837) 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, 12504307 + ... + 12504312.

It is an arithmetic number, because the mean of its divisors is an integer number (25008620).

Almost surely, 2^75025857 is an apocalyptic number.

It is an amenable number.

75025857 is a deficient number, since it is larger than the sum of its proper divisors (25008623).

75025857 is a wasteful number, since it uses less digits than its factorization.

75025857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25008622.

The product of its (nonzero) digits is 98000, while the sum is 39.

The square root of 75025857 is about 8661.7467637885. The cubic root of 75025857 is about 421.7647907234.

The spelling of 75025857 in words is "seventy-five million, twenty-five thousand, eight hundred fifty-seven".