22113177025 has 9 divisors (see below), whose sum is σ = 27421261513. Its totient is φ = 17689946800.

The previous prime is 22113177001. The next prime is 22113177043. The reversal of 22113177025 is 52077131122.

The square root of 22113177025 is 148705.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2001399169 + 20111777856 = 44737^2 + 141816^2 .

It is not a de Polignac number, because 22113177025 - 2¹¹ = 22113174977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 728655 + ... + 758395.

Almost surely, 2^22113177025 is an apocalyptic number.

22113177025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22113177025 is the 148705-th square number.

22113177025 is the 74353-rd centered octagonal number.

It is an amenable number.

22113177025 is a deficient number, since it is larger than the sum of its proper divisors (5308084488).

22113177025 is an frugal number, since it uses more digits than its factorization.

22113177025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59492 (or 29746 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 31.

The spelling of 22113177025 in words is "twenty-two billion, one hundred thirteen million, one hundred seventy-seven thousand, twenty-five".