2557154667 has 4 divisors (see below), whose sum is σ = 3409539560. Its totient is φ = 1704769776.

The previous prime is 2557154657. The next prime is 2557154681. The reversal of 2557154667 is 7664517552.

2557154667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2557154667 - 2¹⁶ = 2557089131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2557154647) 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, 426192442 + ... + 426192447.

It is an arithmetic number, because the mean of its divisors is an integer number (852384890).

Almost surely, 2^2557154667 is an apocalyptic number.

2557154667 is a deficient number, since it is larger than the sum of its proper divisors (852384893).

2557154667 is an equidigital number, since it uses as much as digits as its factorization.

2557154667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852384892.

The product of its digits is 1764000, while the sum is 48.

The square root of 2557154667 is about 50568.3168298096. The cubic root of 2557154667 is about 1367.4737516449.

The spelling of 2557154667 in words is "two billion, five hundred fifty-seven million, one hundred fifty-four thousand, six hundred sixty-seven".