2705513157 has 12 divisors (see below), whose sum is σ = 4052703200. Its totient is φ = 1803675276.

The previous prime is 2705513147. The next prime is 2705513171. The reversal of 2705513157 is 7513155072.

It is a happy number.

2705513157 is a `hidden beast` number, since 2 + 70 + 551 + 31 + 5 + 7 = 666.

It is not a de Polignac number, because 2705513157 - 2¹⁶ = 2705447621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2705513147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5566657 + ... + 5567142.

Almost surely, 2^2705513157 is an apocalyptic number.

2705513157 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2705513157 is a deficient number, since it is larger than the sum of its proper divisors (1347190043).

2705513157 is an equidigital number, since it uses as much as digits as its factorization.

2705513157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11133814 (or 11133802 counting only the distinct ones).

The product of its (nonzero) digits is 36750, while the sum is 36.

The square root of 2705513157 is about 52014.5475516225. The cubic root of 2705513157 is about 1393.4237763927.

The spelling of 2705513157 in words is "two billion, seven hundred five million, five hundred thirteen thousand, one hundred fifty-seven".