25727222664530 has 16 divisors (see below), whose sum is σ = 49033059666840. Its totient is φ = 9685542650112.

The previous prime is 25727222664503. The next prime is 25727222664551. The reversal of 25727222664530 is 3546622272752.

It can be written as a sum of positive squares in 4 ways, for example, as 25514409290041 + 212813374489 = 5051179^2 + 461317^2 .

It is a super-2 number, since 2×25727222664530² (a number of 28 digits) contains 22 as substring.

It is a Curzon 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, 75668301785 + ... + 75668302124.

Almost surely, 2^{25727222664530} is an apocalyptic number.

25727222664530 is a deficient number, since it is larger than the sum of its proper divisors (23305837002310).

25727222664530 is a wasteful number, since it uses less digits than its factorization.

25727222664530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151336603933.

The product of its (nonzero) digits is 16934400, while the sum is 53.

The spelling of 25727222664530 in words is "twenty-five trillion, seven hundred twenty-seven billion, two hundred twenty-two million, six hundred sixty-four thousand, five hundred thirty".