22770025 has 12 divisors (see below), whose sum is σ = 28310812. Its totient is φ = 18167040.

The previous prime is 22769951. The next prime is 22770049. The reversal of 22770025 is 52007722.

It can be written as a sum of positive squares in 6 ways, for example, as 755161 + 22014864 = 869^2 + 4692^2 .

It is not a de Polignac number, because 22770025 - 2¹¹ = 22767977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10429 + ... + 12421.

Almost surely, 2^22770025 is an apocalyptic number.

22770025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22770025 is a deficient number, since it is larger than the sum of its proper divisors (5540787).

22770025 is a wasteful number, since it uses less digits than its factorization.

22770025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2460 (or 2455 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 22770025 is about 4771.7947357362. The cubic root of 22770025 is about 283.4356685317.

Adding to 22770025 its reverse (52007722), we get a palindrome (74777747).

The spelling of 22770025 in words is "twenty-two million, seven hundred seventy thousand, twenty-five".