524572221440 has 56 divisors (see below), whose sum is σ = 1258896588120. Its totient is φ = 209828872192.

The previous prime is 524572221431. The next prime is 524572221469. The reversal of 524572221440 is 44122275425.

It is a junction number, because it is equal to n+sod(n) for n = 524572221394 and 524572221403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6362510 + ... + 6444429.

Almost surely, 2^524572221440 is an apocalyptic number.

It is an amenable number.

524572221440 is an abundant number, since it is smaller than the sum of its proper divisors (734324366680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

524572221440 is an equidigital number, since it uses as much as digits as its factorization.

524572221440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12806970 (or 12806946 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 38.

Adding to 524572221440 its reverse (44122275425), we get a palindrome (568694496865).

The spelling of 524572221440 in words is "five hundred twenty-four billion, five hundred seventy-two million, two hundred twenty-one thousand, four hundred forty".