22152025 has 12 divisors (see below), whose sum is σ = 31392832. Its totient is φ = 15189840.

The previous prime is 22152023. The next prime is 22152029. The reversal of 22152025 is 52025122.

It is not a de Polignac number, because 22152025 - 2¹ = 22152023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22151993 and 22152011.

It is not an unprimeable number, because it can be changed into a prime (22152023) 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, 63117 + ... + 63466.

Almost surely, 2^22152025 is an apocalyptic number.

22152025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22152025 is a deficient number, since it is larger than the sum of its proper divisors (9240807).

22152025 is a wasteful number, since it uses less digits than its factorization.

22152025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126600 (or 126595 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 22152025 is about 4706.5937789446. The cubic root of 22152025 is about 280.8478763573.

Adding to 22152025 its reverse (52025122), we get a palindrome (74177147).

The spelling of 22152025 in words is "twenty-two million, one hundred fifty-two thousand, twenty-five".