553621532420 has 48 divisors (see below), whose sum is σ = 1268379616896. Its totient is φ = 201303744000.

The previous prime is 553621532419. The next prime is 553621532479. The reversal of 553621532420 is 24235126355.

It is a super-2 number, since 2×553621532420² (a number of 24 digits) contains 22 as substring.

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, 3675185 + ... + 3822855.

It is an arithmetic number, because the mean of its divisors is an integer number (26424575352).

Almost surely, 2^553621532420 is an apocalyptic number.

It is an amenable number.

553621532420 is an abundant number, since it is smaller than the sum of its proper divisors (714758084476).

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

553621532420 is a wasteful number, since it uses less digits than its factorization.

553621532420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164732 (or 164730 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 38.

Adding to 553621532420 its reverse (24235126355), we get a palindrome (577856658775).

The spelling of 553621532420 in words is "five hundred fifty-three billion, six hundred twenty-one million, five hundred thirty-two thousand, four hundred twenty".