2525661201 has 16 divisors (see below), whose sum is σ = 3938130944. Its totient is φ = 1409670864.

The previous prime is 2525661191. The next prime is 2525661209. The reversal of 2525661201 is 1021665252.

It is not a de Polignac number, because 2525661201 - 2¹⁷ = 2525530129 is a prime.

It is a super-3 number, since 3×2525661201³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2525661209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1397581 + ... + 1399386.

It is an arithmetic number, because the mean of its divisors is an integer number (246133184).

Almost surely, 2^2525661201 is an apocalyptic number.

2525661201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2525661201 is a deficient number, since it is larger than the sum of its proper divisors (1412469743).

2525661201 is a wasteful number, since it uses less digits than its factorization.

2525661201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2797020.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 2525661201 is about 50255.9568708029. The cubic root of 2525661201 is about 1361.8366910311.

The spelling of 2525661201 in words is "two billion, five hundred twenty-five million, six hundred sixty-one thousand, two hundred one".