22678854025 has 9 divisors (see below), whose sum is σ = 28122712711. Its totient is φ = 18142480840.

The previous prime is 22678854017. The next prime is 22678854067. The reversal of 22678854025 is 52045887622.

It is a happy number.

The square root of 22678854025 is 150595.

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

It can be written as a sum of positive squares in only one way, i.e., 8164387449 + 14514466576 = 90357^2 + 120476^2 .

It is not a de Polignac number, because 22678854025 - 2³ = 22678854017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22678854025.

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, 737916 + ... + 768034.

Almost surely, 2^22678854025 is an apocalyptic number.

22678854025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22678854025 is the 150595-th square number.

22678854025 is the 75298-th centered octagonal number.

It is an amenable number.

22678854025 is a deficient number, since it is larger than the sum of its proper divisors (5443858686).

22678854025 is an frugal number, since it uses more digits than its factorization.

22678854025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60248 (or 30124 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 49.

Multiplying 22678854025 by its sum of digits (49), we get a square (1111263847225 = 1054165²).

The spelling of 22678854025 in words is "twenty-two billion, six hundred seventy-eight million, eight hundred fifty-four thousand, twenty-five".