75650881 has 6 divisors (see below), whose sum is σ = 78170946. Its totient is φ = 73209600.

The previous prime is 75650857. The next prime is 75650899. The reversal of 75650881 is 18805657.

It can be written as a sum of positive squares in only one way, i.e., 66977856 + 8673025 = 8184^2 + 2945^2 .

It is not a de Polignac number, because 75650881 - 2⁹ = 75650369 is a prime.

It is a super-2 number, since 2×75650881² = 11446111592152322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75650831) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38400 + ... + 40321.

It is an arithmetic number, because the mean of its divisors is an integer number (13028491).

Almost surely, 2^75650881 is an apocalyptic number.

It is an amenable number.

75650881 is a deficient number, since it is larger than the sum of its proper divisors (2520065).

75650881 is an equidigital number, since it uses as much as digits as its factorization.

75650881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78783 (or 78752 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 40.

The square root of 75650881 is about 8697.7514910464. The cubic root of 75650881 is about 422.9327633930.

The spelling of 75650881 in words is "seventy-five million, six hundred fifty thousand, eight hundred eighty-one".