2501236864 has 32 divisors (see below), whose sum is σ = 5694782400. Its totient is φ = 1071958272.

The previous prime is 2501236849. The next prime is 2501236873. The reversal of 2501236864 is 4686321052.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1394884 + ... + 1396675.

It is an arithmetic number, because the mean of its divisors is an integer number (177961950).

Almost surely, 2^2501236864 is an apocalyptic number.

It is an amenable number.

2501236864 is an abundant number, since it is smaller than the sum of its proper divisors (3193545536).

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

2501236864 is an equidigital number, since it uses as much as digits as its factorization.

2501236864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2791580 (or 2791568 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 2501236864 is about 50012.3671105458. The cubic root of 2501236864 is about 1357.4325957576.

The spelling of 2501236864 in words is "two billion, five hundred one million, two hundred thirty-six thousand, eight hundred sixty-four".