553353053421 has 64 divisors (see below), whose sum is σ = 897675706368. Its totient is φ = 295980715008.

The previous prime is 553353053389. The next prime is 553353053479. The reversal of 553353053421 is 124350353355.

It is not a de Polignac number, because 553353053421 - 2⁵ = 553353053389 is a prime.

It is a super-5 number, since 5×553353053421⁵ (a number of 60 digits) contains 55555 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 553353053421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553353053021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 101660526 + ... + 101665968.

It is an arithmetic number, because the mean of its divisors is an integer number (14026182912).

Almost surely, 2^553353053421 is an apocalyptic number.

553353053421 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

553353053421 is a deficient number, since it is larger than the sum of its proper divisors (344322652947).

553353053421 is a wasteful number, since it uses less digits than its factorization.

553353053421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6970.

The product of its (nonzero) digits is 405000, while the sum is 39.

The spelling of 553353053421 in words is "five hundred fifty-three billion, three hundred fifty-three million, fifty-three thousand, four hundred twenty-one".