2154350553 has 4 divisors (see below), whose sum is σ = 2872467408. Its totient is φ = 1436233700.

The previous prime is 2154350533. The next prime is 2154350557. The reversal of 2154350553 is 3550534512.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2154350553 - 2¹⁰ = 2154349529 is a prime.

It is a super-2 number, since 2×2154350553² = 9282452610422811618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2154350557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359058423 + ... + 359058428.

It is an arithmetic number, because the mean of its divisors is an integer number (718116852).

Almost surely, 2^2154350553 is an apocalyptic number.

It is an amenable number.

2154350553 is a deficient number, since it is larger than the sum of its proper divisors (718116855).

2154350553 is an equidigital number, since it uses as much as digits as its factorization.

2154350553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718116854.

The product of its (nonzero) digits is 45000, while the sum is 33.

The square root of 2154350553 is about 46414.9819885778. The cubic root of 2154350553 is about 1291.5328518542.

The spelling of 2154350553 in words is "two billion, one hundred fifty-four million, three hundred fifty thousand, five hundred fifty-three".