63155261 has 8 divisors (see below), whose sum is σ = 69595680. Its totient is φ = 56940912.

The previous prime is 63155251. The next prime is 63155269. The reversal of 63155261 is 16255136.

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

It is a cyclic number.

It is not a de Polignac number, because 63155261 - 2¹⁰ = 63154237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63155269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55931 + ... + 57048.

It is an arithmetic number, because the mean of its divisors is an integer number (8699460).

Almost surely, 2^63155261 is an apocalyptic number.

It is an amenable number.

63155261 is a deficient number, since it is larger than the sum of its proper divisors (6440419).

63155261 is a wasteful number, since it uses less digits than its factorization.

63155261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113035.

The product of its digits is 5400, while the sum is 29.

The square root of 63155261 is about 7947.0284383535. The cubic root of 63155261 is about 398.2323269201.

The spelling of 63155261 in words is "sixty-three million, one hundred fifty-five thousand, two hundred sixty-one".