5205620306 has 4 divisors (see below), whose sum is σ = 7808430462. Its totient is φ = 2602810152.

The previous prime is 5205620267. The next prime is 5205620359. The reversal of 5205620306 is 6030265025.

It is a happy number.

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., 4588843081 + 616777225 = 67741^2 + 24835^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1301405075 + ... + 1301405078.

Almost surely, 2^5205620306 is an apocalyptic number.

5205620306 is a deficient number, since it is larger than the sum of its proper divisors (2602810156).

5205620306 is a wasteful number, since it uses less digits than its factorization.

5205620306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2602810155.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 5205620306 is about 72149.9847955632. The cubic root of 5205620306 is about 1733.1021563074.

The spelling of 5205620306 in words is "five billion, two hundred five million, six hundred twenty thousand, three hundred six".