63375481 has 4 divisors (see below), whose sum is σ = 68250532. Its totient is φ = 58500432.

The previous prime is 63375467. The next prime is 63375493. The reversal of 63375481 is 18457336.

63375481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19219456 + 44156025 = 4384^2 + 6645^2 .

It is a cyclic number.

It is not a de Polignac number, because 63375481 - 2¹³ = 63367289 is a prime.

It is a super-2 number, since 2×63375481² = 8032903183962722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63375481.

It is not an unprimeable number, because it can be changed into a prime (63375181) 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, 2437506 + ... + 2437531.

It is an arithmetic number, because the mean of its divisors is an integer number (17062633).

Almost surely, 2^63375481 is an apocalyptic number.

It is an amenable number.

63375481 is a deficient number, since it is larger than the sum of its proper divisors (4875051).

63375481 is a wasteful number, since it uses less digits than its factorization.

63375481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4875050.

The product of its digits is 60480, while the sum is 37.

The square root of 63375481 is about 7960.8718743615. The cubic root of 63375481 is about 398.6946636261.

The spelling of 63375481 in words is "sixty-three million, three hundred seventy-five thousand, four hundred eighty-one".