522748545994 has 4 divisors (see below), whose sum is σ = 784122818994. Its totient is φ = 261374272996.

The previous prime is 522748545959. The next prime is 522748546009. The reversal of 522748545994 is 499545847225.

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., 518706765369 + 4041780625 = 720213^2 + 63575^2 .

It is a super-2 number, since 2×522748545994² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130687136497 + ... + 130687136500.

Almost surely, 2^522748545994 is an apocalyptic number.

522748545994 is a deficient number, since it is larger than the sum of its proper divisors (261374273000).

522748545994 is a wasteful number, since it uses less digits than its factorization.

522748545994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261374272999.

The product of its digits is 145152000, while the sum is 64.

The spelling of 522748545994 in words is "five hundred twenty-two billion, seven hundred forty-eight million, five hundred forty-five thousand, nine hundred ninety-four".