63275081 has 4 divisors (see below), whose sum is σ = 64347600. Its totient is φ = 62202564.

The previous prime is 63275077. The next prime is 63275099. The reversal of 63275081 is 18057236.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 63275081 - 2² = 63275077 is a prime.

It is a super-2 number, since 2×63275081² = 8007471751113122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63275281) 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, 536171 + ... + 536288.

It is an arithmetic number, because the mean of its divisors is an integer number (16086900).

Almost surely, 2^63275081 is an apocalyptic number.

It is an amenable number.

63275081 is a deficient number, since it is larger than the sum of its proper divisors (1072519).

63275081 is a wasteful number, since it uses less digits than its factorization.

63275081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072518.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 63275081 is about 7954.5635329665. The cubic root of 63275081 is about 398.4840138064.

It can be divided in two parts, 632750 and 81, that multiplied together give a triangular number (51252750 = T₁₀₁₂₄).

The spelling of 63275081 in words is "sixty-three million, two hundred seventy-five thousand, eighty-one".