201025450 has 24 divisors (see below), whose sum is σ = 374356620. Its totient is φ = 80313600.

The previous prime is 201025417. The next prime is 201025463. The reversal of 201025450 is 54520102.

It can be written as a sum of positive squares in 6 ways, for example, as 64112049 + 136913401 = 8007^2 + 11701^2 .

It is a super-2 number, since 2×201025450² = 80822463095405000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51570 + ... + 55330.

Almost surely, 2^201025450 is an apocalyptic number.

201025450 is a deficient number, since it is larger than the sum of its proper divisors (173331170).

201025450 is a wasteful number, since it uses less digits than its factorization.

201025450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4842 (or 4837 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 201025450 is about 14178.3444026445. The cubic root of 201025450 is about 585.8013222971.

Adding to 201025450 its reverse (54520102), we get a palindrome (255545552).

It can be divided in two parts, 20102 and 5450, that added together give a palindrome (25552).

The spelling of 201025450 in words is "two hundred one million, twenty-five thousand, four hundred fifty".