2557455155 has 8 divisors (see below), whose sum is σ = 3143798784. Its totient is φ = 1996062400.

The previous prime is 2557455151. The next prime is 2557455181. The reversal of 2557455155 is 5515547552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2557455155 - 2² = 2557455151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2557455151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6237491 + ... + 6237900.

It is an arithmetic number, because the mean of its divisors is an integer number (392974848).

Almost surely, 2^2557455155 is an apocalyptic number.

2557455155 is a deficient number, since it is larger than the sum of its proper divisors (586343629).

2557455155 is a wasteful number, since it uses less digits than its factorization.

2557455155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12475437.

The product of its digits is 875000, while the sum is 44.

The square root of 2557455155 is about 50571.2878519027. The cubic root of 2557455155 is about 1367.5273129154.

The spelling of 2557455155 in words is "two billion, five hundred fifty-seven million, four hundred fifty-five thousand, one hundred fifty-five".