2534720906 has 4 divisors (see below), whose sum is σ = 3802081362. Its totient is φ = 1267360452.

The previous prime is 2534720887. The next prime is 2534720939. The reversal of 2534720906 is 6090274352.

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

It can be written as a sum of positive squares in only one way, i.e., 1529513881 + 1005207025 = 39109^2 + 31705^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2534720906.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633680225 + ... + 633680228.

Almost surely, 2^2534720906 is an apocalyptic number.

2534720906 is a deficient number, since it is larger than the sum of its proper divisors (1267360456).

2534720906 is a wasteful number, since it uses less digits than its factorization.

2534720906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267360455.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 2534720906 is about 50346.0118182165. The cubic root of 2534720906 is about 1363.4630791102.

The spelling of 2534720906 in words is "two billion, five hundred thirty-four million, seven hundred twenty thousand, nine hundred six".