515025042 has 64 divisors (see below), whose sum is σ = 1202826240. Its totient is φ = 143971776.

The previous prime is 515025023. The next prime is 515025053. The reversal of 515025042 is 240520515.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 760408 + ... + 761084.

It is an arithmetic number, because the mean of its divisors is an integer number (18794160).

Almost surely, 2^515025042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 515025042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (601413120).

515025042 is an abundant number, since it is smaller than the sum of its proper divisors (687801198).

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

515025042 is a wasteful number, since it uses less digits than its factorization.

515025042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 515025042 is about 22694.1631702956. The cubic root of 515025042 is about 801.5724499348.

Adding to 515025042 its reverse (240520515), we get a palindrome (755545557).

The spelling of 515025042 in words is "five hundred fifteen million, twenty-five thousand, forty-two".