2552665040 has 20 divisors (see below), whose sum is σ = 5934946404. Its totient is φ = 1021065984.

The previous prime is 2552665033. The next prime is 2552665079. The reversal of 2552665040 is 405662552.

It can be written as a sum of positive squares in 2 ways, for example, as 1341903424 + 1210761616 = 36632^2 + 34796^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15954077 + ... + 15954236.

Almost surely, 2^2552665040 is an apocalyptic number.

2552665040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2552665040 is an abundant number, since it is smaller than the sum of its proper divisors (3382281364).

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

2552665040 is a wasteful number, since it uses less digits than its factorization.

2552665040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31908326 (or 31908320 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The square root of 2552665040 is about 50523.9056289199. The cubic root of 2552665040 is about 1366.6729861563.

The spelling of 2552665040 in words is "two billion, five hundred fifty-two million, six hundred sixty-five thousand, forty".