25440155243151 has 16 divisors (see below), whose sum is σ = 37005368002560. Its totient is φ = 15417648475520.

The previous prime is 25440155243101. The next prime is 25440155243183. The reversal of 25440155243151 is 15134255104452.

It is a cyclic number.

It is not a de Polignac number, because 25440155243151 - 2¹¹ = 25440155241103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25440155243101) 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, 14861871 + ... + 16485008.

It is an arithmetic number, because the mean of its divisors is an integer number (2312835500160).

Almost surely, 2^{25440155243151} is an apocalyptic number.

25440155243151 is a deficient number, since it is larger than the sum of its proper divisors (11565212759409).

25440155243151 is a wasteful number, since it uses less digits than its factorization.

25440155243151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31371486.

The product of its (nonzero) digits is 480000, while the sum is 42.

The spelling of 25440155243151 in words is "twenty-five trillion, four hundred forty billion, one hundred fifty-five million, two hundred forty-three thousand, one hundred fifty-one".