551318563245 has 32 divisors (see below), whose sum is σ = 920594995200. Its totient is φ = 281211822144.

The previous prime is 551318563241. The next prime is 551318563249. The reversal of 551318563245 is 542365813155.

It is an interprime number because it is at equal distance from previous prime (551318563241) and next prime (551318563249).

It is not a de Polignac number, because 551318563245 - 2² = 551318563241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 551318563194 and 551318563203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551318563241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2358246 + ... + 2581464.

It is an arithmetic number, because the mean of its divisors is an integer number (28768593600).

Almost surely, 2^551318563245 is an apocalyptic number.

It is an amenable number.

551318563245 is a deficient number, since it is larger than the sum of its proper divisors (369276431955).

551318563245 is a wasteful number, since it uses less digits than its factorization.

551318563245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230409.

The product of its digits is 2160000, while the sum is 48.

The spelling of 551318563245 in words is "five hundred fifty-one billion, three hundred eighteen million, five hundred sixty-three thousand, two hundred forty-five".