4211361025 has 9 divisors (see below), whose sum is σ = 5222490051. Its totient is φ = 3368829240.

The previous prime is 4211360969. The next prime is 4211361041. The reversal of 4211361025 is 5201631124.

It is a happy number.

The square root of 4211361025 is 64895.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1516089969 + 2695271056 = 38937^2 + 51916^2 .

It is not a de Polignac number, because 4211361025 - 2¹⁵ = 4211328257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 317986 + ... + 330964.

Almost surely, 2^4211361025 is an apocalyptic number.

4211361025 is the 64895-th square number.

4211361025 is the 32448-th centered octagonal number.

It is an amenable number.

4211361025 is a deficient number, since it is larger than the sum of its proper divisors (1011129026).

4211361025 is an frugal number, since it uses more digits than its factorization.

4211361025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25968 (or 12984 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The cubic root of 4211361025 is about 1614.8821142949.

Multiplying 4211361025 by its sum of digits (25), we get a square (105284025625 = 324475²).

4211361025 divided by its sum of digits (25) gives a square (168454441 = 12979²).

Adding to 4211361025 its reverse (5201631124), we get a palindrome (9412992149).

The spelling of 4211361025 in words is "four billion, two hundred eleven million, three hundred sixty-one thousand, twenty-five".