63955541 has 4 divisors (see below), whose sum is σ = 68875212. Its totient is φ = 59035872.

The previous prime is 63955517. The next prime is 63955559. The reversal of 63955541 is 14555936.

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 18447025 + 45508516 = 4295^2 + 6746^2 .

It is a cyclic number.

It is not a de Polignac number, because 63955541 - 2¹⁴ = 63939157 is a prime.

It is a super-2 number, since 2×63955541² = 8180622449205362, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63955495 and 63955504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63955561) 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, 2459816 + ... + 2459841.

It is an arithmetic number, because the mean of its divisors is an integer number (17218803).

Almost surely, 2^63955541 is an apocalyptic number.

It is an amenable number.

63955541 is a deficient number, since it is larger than the sum of its proper divisors (4919671).

63955541 is a wasteful number, since it uses less digits than its factorization.

63955541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4919670.

The product of its digits is 81000, while the sum is 38.

The square root of 63955541 is about 7997.2208297633. The cubic root of 63955541 is about 399.9073556275.

The spelling of 63955541 in words is "sixty-three million, nine hundred fifty-five thousand, five hundred forty-one".