201425633 has 2 divisors, whose sum is σ = 201425634. Its totient is φ = 201425632.

The previous prime is 201425621. The next prime is 201425647. The reversal of 201425633 is 336524102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201412864 + 12769 = 14192^2 + 113^2 .

It is a cyclic number.

It is not a de Polignac number, because 201425633 - 2⁸ = 201425377 is a prime.

It is a super-3 number, since 3×201425633³ (a number of 26 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (201425663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100712816 + 100712817.

It is an arithmetic number, because the mean of its divisors is an integer number (100712817).

Almost surely, 2^201425633 is an apocalyptic number.

It is an amenable number.

201425633 is a deficient number, since it is larger than the sum of its proper divisors (1).

201425633 is an equidigital number, since it uses as much as digits as its factorization.

201425633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 201425633 is about 14192.4498589919. The cubic root of 201425633 is about 586.1897844600.

Adding to 201425633 its reverse (336524102), we get a palindrome (537949735).

The spelling of 201425633 in words is "two hundred one million, four hundred twenty-five thousand, six hundred thirty-three".