2557156030 has 32 divisors (see below), whose sum is σ = 5407583328. Its totient is φ = 858345600.

The previous prime is 2557156013. The next prime is 2557156033. The reversal of 2557156030 is 306517552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557156033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 892681 + ... + 895540.

It is an arithmetic number, because the mean of its divisors is an integer number (168986979).

Almost surely, 2^2557156030 is an apocalyptic number.

2557156030 is an abundant number, since it is smaller than the sum of its proper divisors (2850427298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2557156030 is a wasteful number, since it uses less digits than its factorization.

2557156030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788252.

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 2557156030 is about 50568.3303066257. The cubic root of 2557156030 is about 1367.4739946059.

The spelling of 2557156030 in words is "two billion, five hundred fifty-seven million, one hundred fifty-six thousand, thirty".