2045553013 has 4 divisors (see below), whose sum is σ = 2337774880. Its totient is φ = 1753331148.

The previous prime is 2045552981. The next prime is 2045553031. The reversal of 2045553013 is 3103555402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3103555402 = 2 ⋅1551777701.

It is a cyclic number.

It is not a de Polignac number, because 2045553013 - 2⁵ = 2045552981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045553613) 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 3 ways as a sum of consecutive naturals, for example, 146110923 + ... + 146110936.

It is an arithmetic number, because the mean of its divisors is an integer number (584443720).

Almost surely, 2^2045553013 is an apocalyptic number.

It is an amenable number.

2045553013 is a deficient number, since it is larger than the sum of its proper divisors (292221867).

2045553013 is an equidigital number, since it uses as much as digits as its factorization.

2045553013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292221866.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 2045553013 is about 45227.7902732380. The cubic root of 2045553013 is about 1269.4148652991.

The spelling of 2045553013 in words is "two billion, forty-five million, five hundred fifty-three thousand, thirteen".