213355454553 has 24 divisors (see below), whose sum is σ = 322150600512. Its totient is φ = 135811022688.

The previous prime is 213355454539. The next prime is 213355454561. The reversal of 213355454553 is 355454553312.

213355454553 is a `hidden beast` number, since 2 + 1 + 3 + 3 + 5 + 54 + 545 + 53 = 666.

It is not a de Polignac number, because 213355454553 - 2¹⁷ = 213355323481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213355454499 and 213355454508.

It is not an unprimeable number, because it can be changed into a prime (213355054553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 798826 + ... + 1031907.

It is an arithmetic number, because the mean of its divisors is an integer number (13422941688).

Almost surely, 2^213355454553 is an apocalyptic number.

213355454553 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

213355454553 is a deficient number, since it is larger than the sum of its proper divisors (108795145959).

213355454553 is a wasteful number, since it uses less digits than its factorization.

213355454553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831325 (or 1831322 counting only the distinct ones).

The product of its digits is 2700000, while the sum is 45.

The spelling of 213355454553 in words is "two hundred thirteen billion, three hundred fifty-five million, four hundred fifty-four thousand, five hundred fifty-three".