102020552 has 8 divisors (see below), whose sum is σ = 191288550. Its totient is φ = 51010272.

The previous prime is 102020537. The next prime is 102020561. The reversal of 102020552 is 255020201.

It can be written as a sum of positive squares in only one way, i.e., 57851236 + 44169316 = 7606^2 + 6646^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 102020552.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6376277 + ... + 6376292.

Almost surely, 2^102020552 is an apocalyptic number.

It is an amenable number.

102020552 is a deficient number, since it is larger than the sum of its proper divisors (89267998).

102020552 is a wasteful number, since it uses less digits than its factorization.

102020552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12752575 (or 12752571 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 102020552 is about 10100.5223627296. The cubic root of 102020552 is about 467.2642516758.

Adding to 102020552 its reverse (255020201), we get a palindrome (357040753).

The spelling of 102020552 in words is "one hundred two million, twenty thousand, five hundred fifty-two".