2725166457 has 16 divisors (see below), whose sum is σ = 4347844480. Its totient is φ = 1677025296.

The previous prime is 2725166449. The next prime is 2725166461. The reversal of 2725166457 is 7546615272.

2725166457 is a `hidden beast` number, since 2 + 72 + 516 + 64 + 5 + 7 = 666.

It is not a de Polignac number, because 2725166457 - 2³ = 2725166449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2725166497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3881653 + ... + 3882354.

It is an arithmetic number, because the mean of its divisors is an integer number (271740280).

Almost surely, 2^2725166457 is an apocalyptic number.

2725166457 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2725166457 is a deficient number, since it is larger than the sum of its proper divisors (1622678023).

2725166457 is a wasteful number, since it uses less digits than its factorization.

2725166457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7764029 (or 7764023 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The square root of 2725166457 is about 52203.1268891050. The cubic root of 2725166457 is about 1396.7896604952.

The spelling of 2725166457 in words is "two billion, seven hundred twenty-five million, one hundred sixty-six thousand, four hundred fifty-seven".