210034252520 has 16 divisors (see below), whose sum is σ = 472577068260. Its totient is φ = 84013700992.

The previous prime is 210034252513. The next prime is 210034252531. The reversal of 210034252520 is 25252430012.

It can be written as a sum of positive squares in 2 ways, for example, as 203395588036 + 6638664484 = 450994^2 + 81478^2 .

It is a super-2 number, since 2×210034252520² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 210034252520.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2625428117 + ... + 2625428196.

Almost surely, 2^210034252520 is an apocalyptic number.

210034252520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210034252520 is an abundant number, since it is smaller than the sum of its proper divisors (262542815740).

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

210034252520 is a wasteful number, since it uses less digits than its factorization.

210034252520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5250856324 (or 5250856320 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 210034252520 its reverse (25252430012), we get a palindrome (235286682532).

The spelling of 210034252520 in words is "two hundred ten billion, thirty-four million, two hundred fifty-two thousand, five hundred twenty".