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25075330530961 = 31808881630031
BaseRepresentation
bin1011011001110010011100…
…01010110011111010010001
310021210011210220021002202011
411230321032022303322101
511241313234103442321
6125155240421222521
75165430031520224
oct554711612637221
9107704726232664
1025075330530961
117a9842a410457
12298b925561a41
1310cb793c7b879
1462991c55b5bb
152d7400b5eae1
hex16ce4e2b3e91

25075330530961 has 4 divisors (see below), whose sum is σ = 25884212161024. Its totient is φ = 24266448900900.

The previous prime is 25075330530953. The next prime is 25075330530979. The reversal of 25075330530961 is 16903503357052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25075330530961 - 23 = 25075330530953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25075330530931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404440814985 + ... + 404440815046.

It is an arithmetic number, because the mean of its divisors is an integer number (6471053040256).

Almost surely, 225075330530961 is an apocalyptic number.

It is an amenable number.

25075330530961 is a deficient number, since it is larger than the sum of its proper divisors (808881630063).

25075330530961 is an equidigital number, since it uses as much as digits as its factorization.

25075330530961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808881630062.

The product of its (nonzero) digits is 2551500, while the sum is 49.

The spelling of 25075330530961 in words is "twenty-five trillion, seventy-five billion, three hundred thirty million, five hundred thirty thousand, nine hundred sixty-one".

Divisors: 1 31 808881630031 25075330530961