6211085762025 has 27 divisors (see below), whose sum is σ = 11124811678071. Its totient is φ = 3312559135440.

The previous prime is 6211085761981. The next prime is 6211085762071. The reversal of 6211085762025 is 5202675801126.

The square root of 6211085762025 is 2492205.

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

6211085762025 is a `hidden beast` number, since 6 + 2 + 1 + 10 + 8 + 5 + 7 + 620 + 2 + 5 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2235990874329 + 3975094887696 = 1495323^2 + 1993764^2 .

It is not a de Polignac number, because 6211085762025 - 2²¹ = 6211083664873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 37300002 + ... + 37466148.

Almost surely, 2^{6211085762025} is an apocalyptic number.

6211085762025 is the 2492205-th square number.

6211085762025 is the 1246103-rd centered octagonal number.

It is an amenable number.

6211085762025 is a deficient number, since it is larger than the sum of its proper divisors (4913725916046).

6211085762025 is an frugal number, since it uses more digits than its factorization.

6211085762025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332310 (or 166155 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 6211085762025 in words is "six trillion, two hundred eleven billion, eighty-five million, seven hundred sixty-two thousand, twenty-five".