75572890 has 8 divisors (see below), whose sum is σ = 136031220. Its totient is φ = 30229152.

The previous prime is 75572879. The next prime is 75572891. The reversal of 75572890 is 9827557.

It can be written as a sum of positive squares in 2 ways, for example, as 74252689 + 1320201 = 8617^2 + 1149^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×75572890² = 11422523405904200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (75572891) 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, 3778635 + ... + 3778654.

Almost surely, 2^75572890 is an apocalyptic number.

75572890 is a deficient number, since it is larger than the sum of its proper divisors (60458330).

75572890 is a wasteful number, since it uses less digits than its factorization.

75572890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7557296.

The product of its (nonzero) digits is 176400, while the sum is 43.

The square root of 75572890 is about 8693.2669348180. The cubic root of 75572890 is about 422.7873749530.

The spelling of 75572890 in words is "seventy-five million, five hundred seventy-two thousand, eight hundred ninety".