2145560553 has 12 divisors (see below), whose sum is σ = 3100739460. Its totient is φ = 1429636896.

The previous prime is 2145560539. The next prime is 2145560567. The reversal of 2145560553 is 3550655412.

2145560553 is a `hidden beast` number, since 2 + 1 + 45 + 5 + 60 + 553 = 666.

It is an interprime number because it is at equal distance from previous prime (2145560539) and next prime (2145560567).

It can be written as a sum of positive squares in 2 ways, for example, as 291999744 + 1853560809 = 17088^2 + 43053^2 .

It is not a de Polignac number, because 2145560553 - 2⁴ = 2145560537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2145560533) 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, 42658 + ... + 78171.

It is an arithmetic number, because the mean of its divisors is an integer number (258394955).

Almost surely, 2^2145560553 is an apocalyptic number.

It is an amenable number.

2145560553 is a deficient number, since it is larger than the sum of its proper divisors (955178907).

2145560553 is a wasteful number, since it uses less digits than its factorization.

2145560553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122808 (or 122805 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The square root of 2145560553 is about 46320.1959516581. The cubic root of 2145560553 is about 1289.7739228837.

The spelling of 2145560553 in words is "two billion, one hundred forty-five million, five hundred sixty thousand, five hundred fifty-three".