2500551031601 has 16 divisors (see below), whose sum is σ = 3026039094144. Its totient is φ = 2017143108864.

The previous prime is 2500551031577. The next prime is 2500551031621. The reversal of 2500551031601 is 1061301550052.

It is not a de Polignac number, because 2500551031601 - 2¹⁴ = 2500551015217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2500551031621) 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, 1704026 + ... + 2811548.

It is an arithmetic number, because the mean of its divisors is an integer number (189127443384).

Almost surely, 2^{2500551031601} is an apocalyptic number.

It is an amenable number.

2500551031601 is a deficient number, since it is larger than the sum of its proper divisors (525488062543).

2500551031601 is a wasteful number, since it uses less digits than its factorization.

2500551031601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126520.

The product of its (nonzero) digits is 4500, while the sum is 29.

Adding to 2500551031601 its reverse (1061301550052), we get a palindrome (3561852581653).

The spelling of 2500551031601 in words is "two trillion, five hundred billion, five hundred fifty-one million, thirty-one thousand, six hundred one".