2025661311 has 32 divisors (see below), whose sum is σ = 3125606400. Its totient is φ = 1295390880.

The previous prime is 2025661301. The next prime is 2025661327. The reversal of 2025661311 is 1131665202.

2025661311 is a `hidden beast` number, since 20 + 25 + 6 + 613 + 1 + 1 = 666.

It is not a de Polignac number, because 2025661311 - 2⁶ = 2025661247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2025661301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56650 + ... + 85208.

It is an arithmetic number, because the mean of its divisors is an integer number (97675200).

Almost surely, 2^2025661311 is an apocalyptic number.

2025661311 is a deficient number, since it is larger than the sum of its proper divisors (1099945089).

2025661311 is a wasteful number, since it uses less digits than its factorization.

2025661311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28676 (or 28670 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2025661311 is about 45007.3473001909. The cubic root of 2025661311 is about 1265.2867042718.

The spelling of 2025661311 in words is "two billion, twenty-five million, six hundred sixty-one thousand, three hundred eleven".