2528861604 has 12 divisors (see below), whose sum is σ = 5900677104. Its totient is φ = 842953864.

The previous prime is 2528861561. The next prime is 2528861609. The reversal of 2528861604 is 4061688252.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (2528861609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105369222 + ... + 105369245.

It is an arithmetic number, because the mean of its divisors is an integer number (491723092).

Almost surely, 2^2528861604 is an apocalyptic number.

It is an amenable number.

2528861604 is an abundant number, since it is smaller than the sum of its proper divisors (3371815500).

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

2528861604 is a wasteful number, since it uses less digits than its factorization.

2528861604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210738474 (or 210738472 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 2528861604 is about 50287.7878216968. The cubic root of 2528861604 is about 1362.4116674098.

The spelling of 2528861604 in words is "two billion, five hundred twenty-eight million, eight hundred sixty-one thousand, six hundred four".