515242014020 has 24 divisors (see below), whose sum is σ = 1082153255064. Its totient is φ = 206069181696.

The previous prime is 515242013983. The next prime is 515242014059. The reversal of 515242014020 is 20410242515.

It can be written as a sum of positive squares in 4 ways, for example, as 278127554884 + 237114459136 = 527378^2 + 486944^2 .

It is a super-2 number, since 2×515242014020² (a number of 24 digits) contains 22 as substring.

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, 1573217 + ... + 1872296.

It is an arithmetic number, because the mean of its divisors is an integer number (45089718961).

Almost surely, 2^515242014020 is an apocalyptic number.

It is an amenable number.

515242014020 is an abundant number, since it is smaller than the sum of its proper divisors (566911241044).

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

515242014020 is a wasteful number, since it uses less digits than its factorization.

515242014020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3452999 (or 3452997 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 515242014020 its reverse (20410242515), we get a palindrome (535652256535).

The spelling of 515242014020 in words is "five hundred fifteen billion, two hundred forty-two million, fourteen thousand, twenty".