521250102 has 12 divisors (see below), whose sum is σ = 1129375260. Its totient is φ = 173750028.

The previous prime is 521250101. The next prime is 521250113. The reversal of 521250102 is 201052125.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 28958339 = 521250102 / (5 + 2 + 1 + 2 + 5 + 0 + 1 + 0 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521250101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14479152 + ... + 14479187.

It is an arithmetic number, because the mean of its divisors is an integer number (94114605).

Almost surely, 2^521250102 is an apocalyptic number.

521250102 is an abundant number, since it is smaller than the sum of its proper divisors (608125158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

521250102 is a wasteful number, since it uses less digits than its factorization.

521250102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28958347 (or 28958344 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 521250102 is about 22830.9023474763. The cubic root of 521250102 is about 804.7890356738.

The spelling of 521250102 in words is "five hundred twenty-one million, two hundred fifty thousand, one hundred two".