505861142 has 4 divisors (see below), whose sum is σ = 758791716. Its totient is φ = 252930570.

The previous prime is 505861091. The next prime is 505861201. The reversal of 505861142 is 241168505.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 505861099 and 505861108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126465284 + ... + 126465287.

It is an arithmetic number, because the mean of its divisors is an integer number (189697929).

Almost surely, 2^505861142 is an apocalyptic number.

505861142 is a deficient number, since it is larger than the sum of its proper divisors (252930574).

505861142 is a wasteful number, since it uses less digits than its factorization.

505861142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252930573.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 505861142 is about 22491.3570510985. The cubic root of 505861142 is about 796.7898137353.

The spelling of 505861142 in words is "five hundred five million, eight hundred sixty-one thousand, one hundred forty-two".