2500537620 has 288 divisors, whose sum is σ = 8435460096. Its totient is φ = 551577600.

The previous prime is 2500537609. The next prime is 2500537631. The reversal of 2500537620 is 267350052.

It is an interprime number because it is at equal distance from previous prime (2500537609) and next prime (2500537631).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13091725 + ... + 13091915.

It is an arithmetic number, because the mean of its divisors is an integer number (29289792).

Almost surely, 2^2500537620 is an apocalyptic number.

2500537620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2500537620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4217730048).

2500537620 is an abundant number, since it is smaller than the sum of its proper divisors (5934922476).

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

2500537620 is a wasteful number, since it uses less digits than its factorization.

2500537620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 2500537620 is about 50005.3759109958. The cubic root of 2500537620 is about 1357.3060896710.

Adding to 2500537620 its reverse (267350052), we get a palindrome (2767887672).

The spelling of 2500537620 in words is "two billion, five hundred million, five hundred thirty-seven thousand, six hundred twenty".