2500555420 has 48 divisors (see below), whose sum is σ = 6030057600. Its totient is φ = 861433920.

The previous prime is 2500555403. The next prime is 2500555427. The reversal of 2500555420 is 245550052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2500555427) 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, 294930 + ... + 303289.

It is an arithmetic number, because the mean of its divisors is an integer number (125626200).

Almost surely, 2^2500555420 is an apocalyptic number.

2500555420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2500555420 is an abundant number, since it is smaller than the sum of its proper divisors (3529502180).

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

2500555420 is a wasteful number, since it uses less digits than its factorization.

2500555420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598258 (or 598256 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 2500555420 is about 50005.5538915429. The cubic root of 2500555420 is about 1357.3093103106.

The spelling of 2500555420 in words is "two billion, five hundred million, five hundred fifty-five thousand, four hundred twenty".