2778052506 has 16 divisors (see below), whose sum is σ = 5747695200. Its totient is φ = 894085808.

The previous prime is 2778052499. The next prime is 2778052513. The reversal of 2778052506 is 6052508772.

It is an interprime number because it is at equal distance from previous prime (2778052499) and next prime (2778052513).

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, 7982736 + ... + 7983083.

It is an arithmetic number, because the mean of its divisors is an integer number (359230950).

Almost surely, 2^2778052506 is an apocalyptic number.

2778052506 is an abundant number, since it is smaller than the sum of its proper divisors (2969642694).

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

2778052506 is a wasteful number, since it uses less digits than its factorization.

2778052506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15965853.

The product of its (nonzero) digits is 235200, while the sum is 42.

The square root of 2778052506 is about 52707.2339057932. The cubic root of 2778052506 is about 1405.7674502599.

The spelling of 2778052506 in words is "two billion, seven hundred seventy-eight million, fifty-two thousand, five hundred six".