505500143402 has 4 divisors (see below), whose sum is σ = 758250215106. Its totient is φ = 252750071700.

The previous prime is 505500143389. The next prime is 505500143411. The reversal of 505500143402 is 204341005505.

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

It can be written as a sum of positive squares in only one way, i.e., 412396436761 + 93103706641 = 642181^2 + 305129^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126375035849 + ... + 126375035852.

Almost surely, 2^505500143402 is an apocalyptic number.

505500143402 is a deficient number, since it is larger than the sum of its proper divisors (252750071704).

505500143402 is a wasteful number, since it uses less digits than its factorization.

505500143402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252750071703.

The product of its (nonzero) digits is 12000, while the sum is 29.

Adding to 505500143402 its reverse (204341005505), we get a palindrome (709841148907).

The spelling of 505500143402 in words is "five hundred five billion, five hundred million, one hundred forty-three thousand, four hundred two".