1020063625 has 24 divisors (see below), whose sum is σ = 1480891464. Its totient is φ = 699468000.

The previous prime is 1020063613. The next prime is 1020063643. The reversal of 1020063625 is 5263600201.

It can be written as a sum of positive squares in 4 ways, for example, as 62346816 + 957716809 = 7896^2 + 30947^2 .

It is not a de Polignac number, because 1020063625 - 2⁹ = 1020063113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020063625.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77146 + ... + 89395.

It is an arithmetic number, because the mean of its divisors is an integer number (61703811).

Almost surely, 2^1020063625 is an apocalyptic number.

It is an amenable number.

1020063625 is a deficient number, since it is larger than the sum of its proper divisors (460827839).

1020063625 is an equidigital number, since it uses as much as digits as its factorization.

1020063625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166570 (or 166553 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1020063625 is about 31938.4349178228. The cubic root of 1020063625 is about 1006.6436393112.

Adding to 1020063625 its reverse (5263600201), we get a palindrome (6283663826).

The spelling of 1020063625 in words is "one billion, twenty million, sixty-three thousand, six hundred twenty-five".