505045402 has 8 divisors (see below), whose sum is σ = 757692756. Its totient is φ = 252481152.

The previous prime is 505045399. The next prime is 505045423. The reversal of 505045402 is 204540505.

505045402 is nontrivially palindromic in base 5.

It can be written as a sum of positive squares in 2 ways, for example, as 504047401 + 998001 = 22451^2 + 999^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2293 + ... + 31864.

Almost surely, 2^505045402 is an apocalyptic number.

505045402 is a deficient number, since it is larger than the sum of its proper divisors (252647354).

505045402 is a wasteful number, since it uses less digits than its factorization.

505045402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41552.

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 505045402 is about 22473.2152127816. The cubic root of 505045402 is about 796.3612883560.

Adding to 505045402 its reverse (204540505), we get a palindrome (709585907).

The spelling of 505045402 in words is "five hundred five million, forty-five thousand, four hundred two".