2145776552 has 16 divisors (see below), whose sum is σ = 4235085600. Its totient is φ = 1016420400.

The previous prime is 2145776551. The next prime is 2145776597. The reversal of 2145776552 is 2556775412.

It is a super-2 number, since 2×2145776552² = 9208714022226017408, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2145776551) 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, 7058324 + ... + 7058627.

It is an arithmetic number, because the mean of its divisors is an integer number (264692850).

Almost surely, 2^2145776552 is an apocalyptic number.

It is an amenable number.

2145776552 is a deficient number, since it is larger than the sum of its proper divisors (2089309048).

2145776552 is a wasteful number, since it uses less digits than its factorization.

2145776552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14116976 (or 14116972 counting only the distinct ones).

The product of its digits is 588000, while the sum is 44.

The square root of 2145776552 is about 46322.5274785390. The cubic root of 2145776552 is about 1289.8172030309.

The spelling of 2145776552 in words is "two billion, one hundred forty-five million, seven hundred seventy-six thousand, five hundred fifty-two".