2355631049 has 4 divisors (see below), whose sum is σ = 2357363220. Its totient is φ = 2353898880.

The previous prime is 2355631021. The next prime is 2355631063. The reversal of 2355631049 is 9401365532.

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 717972025 + 1637659024 = 26795^2 + 40468^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2355631049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2355631009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 864044 + ... + 866765.

It is an arithmetic number, because the mean of its divisors is an integer number (589340805).

Almost surely, 2^2355631049 is an apocalyptic number.

It is an amenable number.

2355631049 is a deficient number, since it is larger than the sum of its proper divisors (1732171).

2355631049 is a wasteful number, since it uses less digits than its factorization.

2355631049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732170.

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 2355631049 is about 48534.8436589632. The cubic root of 2355631049 is about 1330.5639624977.

The spelling of 2355631049 in words is "two billion, three hundred fifty-five million, six hundred thirty-one thousand, forty-nine".