1772512005 has 16 divisors (see below), whose sum is σ = 3093839424. Its totient is φ = 859399680.

The previous prime is 1772511991. The next prime is 1772512009. The reversal of 1772512005 is 5002152771.

It is not a de Polignac number, because 1772512005 - 2⁴ = 1772511989 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1772512009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5371084 + ... + 5371413.

It is an arithmetic number, because the mean of its divisors is an integer number (193364964).

Almost surely, 2^1772512005 is an apocalyptic number.

1772512005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1772512005 is a deficient number, since it is larger than the sum of its proper divisors (1321327419).

1772512005 is a wasteful number, since it uses less digits than its factorization.

1772512005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10742516.

The product of its (nonzero) digits is 4900, while the sum is 30.

The square root of 1772512005 is about 42101.2114433777. The cubic root of 1772512005 is about 1210.2164776720.

Adding to 1772512005 its reverse (5002152771), we get a palindrome (6774664776).

The spelling of 1772512005 in words is "one billion, seven hundred seventy-two million, five hundred twelve thousand, five".