225125057 has 8 divisors (see below), whose sum is σ = 239183400. Its totient is φ = 211486464.

The previous prime is 225125051. The next prime is 225125063. The reversal of 225125057 is 750521522.

It is an interprime number because it is at equal distance from previous prime (225125051) and next prime (225125063).

It can be written as a sum of positive squares in 4 ways, for example, as 116985856 + 108139201 = 10816^2 + 10399^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225125057 - 2¹⁶ = 225059521 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225125051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103832 + ... + 105977.

It is an arithmetic number, because the mean of its divisors is an integer number (29897925).

Almost surely, 2^225125057 is an apocalyptic number.

It is an amenable number.

225125057 is a deficient number, since it is larger than the sum of its proper divisors (14058343).

225125057 is a wasteful number, since it uses less digits than its factorization.

225125057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209875.

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 225125057 is about 15004.1679875960. The cubic root of 225125057 is about 608.3328634178.

Adding to 225125057 its reverse (750521522), we get a palindrome (975646579).

The spelling of 225125057 in words is "two hundred twenty-five million, one hundred twenty-five thousand, fifty-seven".