204625957 has 16 divisors (see below), whose sum is σ = 223361712. Its totient is φ = 186695680.

The previous prime is 204625919. The next prime is 204625979. The reversal of 204625957 is 759526402.

It can be written as a sum of positive squares in 8 ways, for example, as 31203396 + 173422561 = 5586^2 + 13169^2 .

It is a cyclic number.

It is not a de Polignac number, because 204625957 - 2¹⁵ = 204593189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204625907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119733 + ... + 121429.

It is an arithmetic number, because the mean of its divisors is an integer number (13960107).

Almost surely, 2^204625957 is an apocalyptic number.

It is an amenable number.

204625957 is a deficient number, since it is larger than the sum of its proper divisors (18735755).

204625957 is a wasteful number, since it uses less digits than its factorization.

204625957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 204625957 is about 14304.7529513795. The cubic root of 204625957 is about 589.2780185301.

The spelling of 204625957 in words is "two hundred four million, six hundred twenty-five thousand, nine hundred fifty-seven".