5205523144 has 8 divisors (see below), whose sum is σ = 9760355910. Its totient is φ = 2602761568.

The previous prime is 5205523129. The next prime is 5205523163. The reversal of 5205523144 is 4413255025.

It can be written as a sum of positive squares in only one way, i.e., 4989727044 + 215796100 = 70638^2 + 14690^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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, 325345189 + ... + 325345204.

Almost surely, 2^5205523144 is an apocalyptic number.

It is an amenable number.

5205523144 is a deficient number, since it is larger than the sum of its proper divisors (4554832766).

5205523144 is a wasteful number, since it uses less digits than its factorization.

5205523144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650690399 (or 650690395 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 5205523144 is about 72149.3114589460. The cubic root of 5205523144 is about 1733.0913735566.

Adding to 5205523144 its reverse (4413255025), we get a palindrome (9618778169).

The spelling of 5205523144 in words is "five billion, two hundred five million, five hundred twenty-three thousand, one hundred forty-four".