2530556540 has 48 divisors (see below), whose sum is σ = 5464627392. Its totient is φ = 983632896.

The previous prime is 2530556533. The next prime is 2530556543. The reversal of 2530556540 is 456550352.

It is a self number, because there is not a number n which added to its sum of digits gives 2530556540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2530556543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 785012 + ... + 788228.

It is an arithmetic number, because the mean of its divisors is an integer number (113846404).

Almost surely, 2^2530556540 is an apocalyptic number.

2530556540 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 2530556540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2732313696).

2530556540 is an abundant number, since it is smaller than the sum of its proper divisors (2934070852).

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

2530556540 is a wasteful number, since it uses less digits than its factorization.

2530556540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4326 (or 4324 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 35.

The square root of 2530556540 is about 50304.6373607841. The cubic root of 2530556540 is about 1362.7159788922.

The spelling of 2530556540 in words is "two billion, five hundred thirty million, five hundred fifty-six thousand, five hundred forty".