2552651380 has 24 divisors (see below), whose sum is σ = 5409752040. Its totient is φ = 1011692160.

The previous prime is 2552651377. The next prime is 2552651393. The reversal of 2552651380 is 831562552.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 783776016 + 1768875364 = 27996^2 + 42058^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 583291 + ... + 587650.

It is an arithmetic number, because the mean of its divisors is an integer number (225406335).

Almost surely, 2^2552651380 is an apocalyptic number.

2552651380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2552651380 is an abundant number, since it is smaller than the sum of its proper divisors (2857100660).

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

2552651380 is a wasteful number, since it uses less digits than its factorization.

2552651380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171059 (or 1171057 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 2552651380 is about 50523.7704452073. The cubic root of 2552651380 is about 1366.6705483398.

The spelling of 2552651380 in words is "two billion, five hundred fifty-two million, six hundred fifty-one thousand, three hundred eighty".