2505500078 has 16 divisors (see below), whose sum is σ = 4017305376. Its totient is φ = 1169055360.

The previous prime is 2505500057. The next prime is 2505500083. The reversal of 2505500078 is 8700055052.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 662351 + ... + 666122.

It is an arithmetic number, because the mean of its divisors is an integer number (251081586).

Almost surely, 2^2505500078 is an apocalyptic number.

2505500078 is a deficient number, since it is larger than the sum of its proper divisors (1511805298).

2505500078 is a wasteful number, since it uses less digits than its factorization.

2505500078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328539.

The product of its (nonzero) digits is 14000, while the sum is 32.

The square root of 2505500078 is about 50054.9705623727. The cubic root of 2505500078 is about 1358.2033798652.

The spelling of 2505500078 in words is "two billion, five hundred five million, five hundred thousand, seventy-eight".