63501480025 has 27 divisors (see below), whose sum is σ = 79688872893. Its totient is φ = 50197404000.

The previous prime is 63501480023. The next prime is 63501480079. The reversal of 63501480025 is 52008410536.

The square root of 63501480025 is 251995.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 11725208089 + 51776271936 = 108283^2 + 227544^2 .

It is not a de Polignac number, because 63501480025 - 2¹ = 63501480023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63501480023) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 127257226 + ... + 127257724.

Almost surely, 2^63501480025 is an apocalyptic number.

63501480025 is the 251995-th square number.

63501480025 is the 125998-th centered octagonal number.

It is an amenable number.

63501480025 is a deficient number, since it is larger than the sum of its proper divisors (16187392868).

63501480025 is an frugal number, since it uses more digits than its factorization.

63501480025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210 (or 605 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 63501480025 in words is "sixty-three billion, five hundred one million, four hundred eighty thousand, twenty-five".