2501312440 has 64 divisors (see below), whose sum is σ = 6145320960. Its totient is φ = 908718720.

The previous prime is 2501312431. The next prime is 2501312449. The reversal of 2501312440 is 442131052.

It is an interprime number because it is at equal distance from previous prime (2501312431) and next prime (2501312449).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2501312449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 652369 + ... + 656191.

It is an arithmetic number, because the mean of its divisors is an integer number (96020640).

Almost surely, 2^2501312440 is an apocalyptic number.

2501312440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2501312440 is an abundant number, since it is smaller than the sum of its proper divisors (3644008520).

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

2501312440 is a wasteful number, since it uses less digits than its factorization.

2501312440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5332 (or 5328 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2501312440 is about 50013.1226779532. The cubic root of 2501312440 is about 1357.4462674326.

Adding to 2501312440 its reverse (442131052), we get a palindrome (2943443492).

The spelling of 2501312440 in words is "two billion, five hundred one million, three hundred twelve thousand, four hundred forty".