515477042 has 8 divisors (see below), whose sum is σ = 773337132. Its totient is φ = 257698000.

The previous prime is 515477003. The next prime is 515477047. The reversal of 515477042 is 240774515.

It can be written as a sum of positive squares in 2 ways, for example, as 504855961 + 10621081 = 22469^2 + 3259^2 .

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 = 515476993 and 515477011.

It is not an unprimeable number, because it can be changed into a prime (515477047) 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, 509 + ... + 32112.

Almost surely, 2^515477042 is an apocalyptic number.

515477042 is a deficient number, since it is larger than the sum of its proper divisors (257860090).

515477042 is a wasteful number, since it uses less digits than its factorization.

515477042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40524.

The product of its (nonzero) digits is 39200, while the sum is 35.

The square root of 515477042 is about 22704.1194940478. The cubic root of 515477042 is about 801.8068753046.

The spelling of 515477042 in words is "five hundred fifteen million, four hundred seventy-seven thousand, forty-two".