222501425 has 24 divisors (see below), whose sum is σ = 288939840. Its totient is φ = 169646400.

The previous prime is 222501421. The next prime is 222501437. The reversal of 222501425 is 524105222.

It is not a de Polignac number, because 222501425 - 2² = 222501421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 222501425.

It is not an unprimeable number, because it can be changed into a prime (222501421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 217415 + ... + 218435.

It is an arithmetic number, because the mean of its divisors is an integer number (12039160).

Almost surely, 2^222501425 is an apocalyptic number.

222501425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222501425 is a deficient number, since it is larger than the sum of its proper divisors (66438415).

222501425 is a wasteful number, since it uses less digits than its factorization.

222501425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433 (or 1428 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 222501425 is about 14916.4816562083. The cubic root of 222501425 is about 605.9604306709.

Adding to 222501425 its reverse (524105222), we get a palindrome (746606647).

The spelling of 222501425 in words is "two hundred twenty-two million, five hundred one thousand, four hundred twenty-five".