1025201005 has 8 divisors (see below), whose sum is σ = 1242422424. Its totient is φ = 812040000.

The previous prime is 1025200999. The next prime is 1025201027. The reversal of 1025201005 is 5001025201.

It can be written as a sum of positive squares in 4 ways, for example, as 544802281 + 480398724 = 23341^2 + 21918^2 .

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

It is not a de Polignac number, because 1025201005 - 2⁵ = 1025200973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1025201005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1014546 + ... + 1015555.

It is an arithmetic number, because the mean of its divisors is an integer number (155302803).

Almost surely, 2^1025201005 is an apocalyptic number.

It is an amenable number.

1025201005 is a deficient number, since it is larger than the sum of its proper divisors (217221419).

1025201005 is a wasteful number, since it uses less digits than its factorization.

1025201005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2030207.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 1025201005 is about 32018.7602039804. The cubic root of 1025201005 is about 1008.3307410326.

Adding to 1025201005 its reverse (5001025201), we get a palindrome (6026226206).

The spelling of 1025201005 in words is "one billion, twenty-five million, two hundred one thousand, five".