102020252548 has 6 divisors (see below), whose sum is σ = 178535441966. Its totient is φ = 51010126272.

The previous prime is 102020252501. The next prime is 102020252549. The reversal of 102020252548 is 845252020201.

It can be written as a sum of positive squares in only one way, i.e., 101593912644 + 426339904 = 318738^2 + 20648^2 .

It is not an unprimeable number, because it can be changed into a prime (102020252549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12752531565 + ... + 12752531572.

Almost surely, 2^102020252548 is an apocalyptic number.

It is an amenable number.

102020252548 is a deficient number, since it is larger than the sum of its proper divisors (76515189418).

102020252548 is a wasteful number, since it uses less digits than its factorization.

102020252548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25505063141 (or 25505063139 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 102020252548 its reverse (845252020201), we get a palindrome (947272272749).

The spelling of 102020252548 in words is "one hundred two billion, twenty million, two hundred fifty-two thousand, five hundred forty-eight".