521246051404 has 48 divisors (see below), whose sum is σ = 997357564000. Its totient is φ = 236901874176.

The previous prime is 521246051371. The next prime is 521246051413. The reversal of 521246051404 is 404150642125.

It is a super-2 number, since 2×521246051404² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 521246051404.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10598182 + ... + 10647250.

Almost surely, 2^521246051404 is an apocalyptic number.

It is an amenable number.

521246051404 is a deficient number, since it is larger than the sum of its proper divisors (476111512596).

521246051404 is a wasteful number, since it uses less digits than its factorization.

521246051404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52202 (or 52200 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 521246051404 its reverse (404150642125), we get a palindrome (925396693529).

The spelling of 521246051404 in words is "five hundred twenty-one billion, two hundred forty-six million, fifty-one thousand, four hundred four".