515255042 has 8 divisors (see below), whose sum is σ = 776288016. Its totient is φ = 256492372.

The previous prime is 515255033. The next prime is 515255047. The reversal of 515255042 is 240552515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 515254996 and 515255014.

It is not an unprimeable number, because it can be changed into a prime (515255047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 567008 + ... + 567915.

It is an arithmetic number, because the mean of its divisors is an integer number (97036002).

Almost surely, 2^515255042 is an apocalyptic number.

515255042 is a deficient number, since it is larger than the sum of its proper divisors (261032974).

515255042 is a wasteful number, since it uses less digits than its factorization.

515255042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135152.

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 515255042 is about 22699.2299869401. The cubic root of 515255042 is about 801.6917543124.

The spelling of 515255042 in words is "five hundred fifteen million, two hundred fifty-five thousand, forty-two".