2545770229 has 4 divisors (see below), whose sum is σ = 2561985484. Its totient is φ = 2529554976.

The previous prime is 2545770223. The next prime is 2545770239. The reversal of 2545770229 is 9220775452.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1843414225 + 702356004 = 42935^2 + 26502^2 .

It is a cyclic number.

It is not a de Polignac number, because 2545770229 - 2¹⁷ = 2545639157 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 (2545770223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8107392 + ... + 8107705.

It is an arithmetic number, because the mean of its divisors is an integer number (640496371).

Almost surely, 2^2545770229 is an apocalyptic number.

It is an amenable number.

2545770229 is a deficient number, since it is larger than the sum of its proper divisors (16215255).

2545770229 is a wasteful number, since it uses less digits than its factorization.

2545770229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16215254.

The product of its (nonzero) digits is 352800, while the sum is 43.

The square root of 2545770229 is about 50455.6263364156. The cubic root of 2545770229 is about 1365.4414042057.

The spelling of 2545770229 in words is "two billion, five hundred forty-five million, seven hundred seventy thousand, two hundred twenty-nine".