64863002525 has 12 divisors (see below), whose sum is σ = 80588154900. Its totient is φ = 51788446080.

The previous prime is 64863002497. The next prime is 64863002543. The reversal of 64863002525 is 52520036846.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 479522404 + 64383480121 = 21898^2 + 253739^2 .

It is not a de Polignac number, because 64863002525 - 2³⁴ = 47683133341 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2535920 + ... + 2561369.

It is an arithmetic number, because the mean of its divisors is an integer number (6715679575).

Almost surely, 2^64863002525 is an apocalyptic number.

It is an amenable number.

64863002525 is a deficient number, since it is larger than the sum of its proper divisors (15725152375).

64863002525 is a wasteful number, since it uses less digits than its factorization.

64863002525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5097808 (or 5097803 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 64863002525 in words is "sixty-four billion, eight hundred sixty-three million, two thousand, five hundred twenty-five".