2558278064 has 10 divisors (see below), whose sum is σ = 4956663780. Its totient is φ = 1279139024.

The previous prime is 2558278061. The next prime is 2558278067. The reversal of 2558278064 is 4608728552.

It is an interprime number because it is at equal distance from previous prime (2558278061) and next prime (2558278067).

It is not an unprimeable number, because it can be changed into a prime (2558278061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79946174 + ... + 79946205.

It is an arithmetic number, because the mean of its divisors is an integer number (495666378).

Almost surely, 2^2558278064 is an apocalyptic number.

It is an amenable number.

2558278064 is a deficient number, since it is larger than the sum of its proper divisors (2398385716).

2558278064 is a wasteful number, since it uses less digits than its factorization.

2558278064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159892387 (or 159892381 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 47.

The square root of 2558278064 is about 50579.4233260918. The cubic root of 2558278064 is about 1367.6739730112.

The spelling of 2558278064 in words is "two billion, five hundred fifty-eight million, two hundred seventy-eight thousand, sixty-four".