63251776 has 56 divisors (see below), whose sum is σ = 145938240. Its totient is φ = 26637312.

The previous prime is 63251767. The next prime is 63251777. The reversal of 63251776 is 67715236.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63251777) 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, 25236 + ... + 27628.

It is an arithmetic number, because the mean of its divisors is an integer number (2606040).

Almost surely, 2^63251776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63251776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72969120).

63251776 is an abundant number, since it is smaller than the sum of its proper divisors (82686464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63251776 is a wasteful number, since it uses less digits than its factorization.

63251776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2471 (or 2461 counting only the distinct ones).

The product of its digits is 52920, while the sum is 37.

The square root of 63251776 is about 7953.0985156730. The cubic root of 63251776 is about 398.4350855914.

The spelling of 63251776 in words is "sixty-three million, two hundred fifty-one thousand, seven hundred seventy-six".