63264551 has 4 divisors (see below), whose sum is σ = 72302352. Its totient is φ = 54226752.

The previous prime is 63264541. The next prime is 63264571. The reversal of 63264551 is 15546236.

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

It is a cyclic number.

It is not a de Polignac number, because 63264551 - 2¹⁴ = 63248167 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 (63264511) 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, 4518890 + ... + 4518903.

It is an arithmetic number, because the mean of its divisors is an integer number (18075588).

Almost surely, 2^63264551 is an apocalyptic number.

63264551 is a deficient number, since it is larger than the sum of its proper divisors (9037801).

63264551 is an equidigital number, since it uses as much as digits as its factorization.

63264551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9037800.

The product of its digits is 21600, while the sum is 32.

The square root of 63264551 is about 7953.9016212171. The cubic root of 63264551 is about 398.4619078453.

The spelling of 63264551 in words is "sixty-three million, two hundred sixty-four thousand, five hundred fifty-one".