2500030278 has 32 divisors (see below), whose sum is σ = 5734840320. Its totient is φ = 806460840.

The previous prime is 2500030261. The next prime is 2500030409. The reversal of 2500030278 is 8720300052.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 745050 + ... + 748397.

It is an arithmetic number, because the mean of its divisors is an integer number (179213760).

Almost surely, 2^2500030278 is an apocalyptic number.

2500030278 is an abundant number, since it is smaller than the sum of its proper divisors (3234810042).

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

2500030278 is a wasteful number, since it uses less digits than its factorization.

2500030278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493489 (or 1493483 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 2500030278 is about 50000.3027790832. The cubic root of 2500030278 is about 1357.2142874178.

It can be divided in two parts, 25000 and 30278, that added together give a triangular number (55278 = T₃₃₂).

The spelling of 2500030278 in words is "two billion, five hundred million, thirty thousand, two hundred seventy-eight".