64025203531 has 32 divisors (see below), whose sum is σ = 71836554240. Its totient is φ = 56771990016.

The previous prime is 64025203513. The next prime is 64025203573. The reversal of 64025203531 is 13530252046.

It is a happy number.

64025203531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 64025203531 - 2¹⁵ = 64025170763 is a prime.

It is a super-2 number, since 2×64025203531² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64025203493 and 64025203502.

It is not an unprimeable number, because it can be changed into a prime (64025203511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8036356 + ... + 8044318.

It is an arithmetic number, because the mean of its divisors is an integer number (2244892320).

Almost surely, 2^64025203531 is an apocalyptic number.

64025203531 is a deficient number, since it is larger than the sum of its proper divisors (7811350709).

64025203531 is a wasteful number, since it uses less digits than its factorization.

64025203531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8403.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 64025203531 its reverse (13530252046), we get a palindrome (77555455577).

The spelling of 64025203531 in words is "sixty-four billion, twenty-five million, two hundred three thousand, five hundred thirty-one".