2495020864 has 224 divisors, whose sum is σ = 6236061696. Its totient is φ = 967127040.

The previous prime is 2495020859. The next prime is 2495020873. The reversal of 2495020864 is 4680205942.

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×2495020864² = 12450258223590612992, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23317899 + ... + 23318005.

Almost surely, 2^2495020864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2495020864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3118030848).

2495020864 is an abundant number, since it is smaller than the sum of its proper divisors (3741040832).

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

2495020864 is a wasteful number, since it uses less digits than its factorization.

2495020864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 2495020864 is about 49950.1838234856. The cubic root of 2495020864 is about 1356.3071791561.

The spelling of 2495020864 in words is "two billion, four hundred ninety-five million, twenty thousand, eight hundred sixty-four".