2639525054 has 4 divisors (see below), whose sum is σ = 3959287584. Its totient is φ = 1319762526.

The previous prime is 2639525051. The next prime is 2639525069. The reversal of 2639525054 is 4505259362.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2639525051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 659881262 + ... + 659881265.

It is an arithmetic number, because the mean of its divisors is an integer number (989821896).

Almost surely, 2^2639525054 is an apocalyptic number.

2639525054 is a deficient number, since it is larger than the sum of its proper divisors (1319762530).

2639525054 is a wasteful number, since it uses less digits than its factorization.

2639525054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319762529.

The product of its (nonzero) digits is 324000, while the sum is 41.

The square root of 2639525054 is about 51376.3082947773. The cubic root of 2639525054 is about 1382.0017602772.

The spelling of 2639525054 in words is "two billion, six hundred thirty-nine million, five hundred twenty-five thousand, fifty-four".