2782758025 has 24 divisors (see below), whose sum is σ = 3511168128. Its totient is φ = 2187794000.

The previous prime is 2782757987. The next prime is 2782758037. The reversal of 2782758025 is 5208572872.

It is not a de Polignac number, because 2782758025 - 2¹⁹ = 2782233737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8947620 + ... + 8947930.

It is an arithmetic number, because the mean of its divisors is an integer number (146298672).

Almost surely, 2^2782758025 is an apocalyptic number.

2782758025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2782758025 is a deficient number, since it is larger than the sum of its proper divisors (728410103).

2782758025 is an frugal number, since it uses more digits than its factorization.

2782758025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 627200, while the sum is 46.

The square root of 2782758025 is about 52751.8532849795. The cubic root of 2782758025 is about 1406.5607079044.

The spelling of 2782758025 in words is "two billion, seven hundred eighty-two million, seven hundred fifty-eight thousand, twenty-five".