63451253 has 4 divisors (see below), whose sum is σ = 63473100. Its totient is φ = 63429408.

The previous prime is 63451249. The next prime is 63451261. The reversal of 63451253 is 35215436.

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 24226084 + 39225169 = 4922^2 + 6263^2 .

It is a cyclic number.

It is not a de Polignac number, because 63451253 - 2² = 63451249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63451243) 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, 5750 + ... + 12647.

It is an arithmetic number, because the mean of its divisors is an integer number (15868275).

Almost surely, 2^63451253 is an apocalyptic number.

It is an amenable number.

63451253 is a deficient number, since it is larger than the sum of its proper divisors (21847).

63451253 is a wasteful number, since it uses less digits than its factorization.

63451253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21846.

The product of its digits is 10800, while the sum is 29.

The square root of 63451253 is about 7965.6294792063. The cubic root of 63451253 is about 398.8534940332.

Adding to 63451253 its reverse (35215436), we get a palindrome (98666689).

The spelling of 63451253 in words is "sixty-three million, four hundred fifty-one thousand, two hundred fifty-three".