515042452 has 24 divisors (see below), whose sum is σ = 915999336. Its totient is φ = 253360128.

The previous prime is 515042419. The next prime is 515042461. The reversal of 515042452 is 254240515.

It can be written as a sum of positive squares in 4 ways, for example, as 200902276 + 314140176 = 14174^2 + 17724^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 515042452.

It is a congruent number.

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, 63288 + ... + 70960.

It is an arithmetic number, because the mean of its divisors is an integer number (38166639).

Almost surely, 2^515042452 is an apocalyptic number.

It is an amenable number.

515042452 is a deficient number, since it is larger than the sum of its proper divisors (400956884).

515042452 is a wasteful number, since it uses less digits than its factorization.

515042452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7947 (or 7945 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 515042452 is about 22694.5467458595. The cubic root of 515042452 is about 801.5814819999.

Adding to 515042452 its reverse (254240515), we get a palindrome (769282967).

It can be divided in two parts, 51504 and 2452, that added together give a triangular number (53956 = T₃₂₈).

The spelling of 515042452 in words is "five hundred fifteen million, forty-two thousand, four hundred fifty-two".