25542604015001 has 16 divisors (see below), whose sum is σ = 26138079708048. Its totient is φ = 24954563404800.

The previous prime is 25542604014953. The next prime is 25542604015007. The reversal of 25542604015001 is 10051040624552.

It can be written as a sum of positive squares in 8 ways, for example, as 2063339776 + 25540540675225 = 45424^2 + 5053765^2 .

It is a cyclic number.

It is not a de Polignac number, because 25542604015001 - 2¹⁴ = 25542603998617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25542604015007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1840391 + ... + 7380531.

It is an arithmetic number, because the mean of its divisors is an integer number (1633629981753).

Almost surely, 2^{25542604015001} is an apocalyptic number.

It is an amenable number.

25542604015001 is a deficient number, since it is larger than the sum of its proper divisors (595475693047).

25542604015001 is a wasteful number, since it uses less digits than its factorization.

25542604015001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5540812.

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 25542604015001 its reverse (10051040624552), we get a palindrome (35593644639553).

The spelling of 25542604015001 in words is "twenty-five trillion, five hundred forty-two billion, six hundred four million, fifteen thousand, one".