515200057252 has 24 divisors (see below), whose sum is σ = 906080175000. Its totient is φ = 256321499136.

The previous prime is 515200057237. The next prime is 515200057271. The reversal of 515200057252 is 252750002515.

It can be written as a sum of positive squares in 4 ways, for example, as 29692114596 + 485507942656 = 172314^2 + 696784^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1202124 + ... + 1573372.

It is an arithmetic number, because the mean of its divisors is an integer number (37753340625).

Almost surely, 2^515200057252 is an apocalyptic number.

It is an amenable number.

515200057252 is a deficient number, since it is larger than the sum of its proper divisors (390880117748).

515200057252 is a wasteful number, since it uses less digits than its factorization.

515200057252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372975 (or 372973 counting only the distinct ones).

The product of its (nonzero) digits is 35000, while the sum is 34.

Adding to 515200057252 its reverse (252750002515), we get a palindrome (767950059767).

The spelling of 515200057252 in words is "five hundred fifteen billion, two hundred million, fifty-seven thousand, two hundred fifty-two".