2554157409 has 4 divisors (see below), whose sum is σ = 3405543216. Its totient is φ = 1702771604.

The previous prime is 2554157399. The next prime is 2554157447. The reversal of 2554157409 is 9047514552.

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 2554157409 - 2¹² = 2554153313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2554157209) 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, 425692899 + ... + 425692904.

It is an arithmetic number, because the mean of its divisors is an integer number (851385804).

Almost surely, 2^2554157409 is an apocalyptic number.

It is an amenable number.

2554157409 is a deficient number, since it is larger than the sum of its proper divisors (851385807).

2554157409 is an equidigital number, since it uses as much as digits as its factorization.

2554157409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851385806.

The product of its (nonzero) digits is 252000, while the sum is 42.

The square root of 2554157409 is about 50538.6724103433. The cubic root of 2554157409 is about 1366.9392677387.

The spelling of 2554157409 in words is "two billion, five hundred fifty-four million, one hundred fifty-seven thousand, four hundred nine".