2500218800061 has 8 divisors (see below), whose sum is σ = 3335730963840. Its totient is φ = 1665759584832.

The previous prime is 2500218800047. The next prime is 2500218800069. The reversal of 2500218800061 is 1600088120052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2500218800061 - 2¹⁴ = 2500218783677 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2500218799995 and 2500218800031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2500218800069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263231596 + ... + 263241093.

It is an arithmetic number, because the mean of its divisors is an integer number (416966370480).

Almost surely, 2^{2500218800061} is an apocalyptic number.

It is an amenable number.

2500218800061 is a deficient number, since it is larger than the sum of its proper divisors (835512163779).

2500218800061 is a wasteful number, since it uses less digits than its factorization.

2500218800061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526474275.

The product of its (nonzero) digits is 7680, while the sum is 33.

The spelling of 2500218800061 in words is "two trillion, five hundred billion, two hundred eighteen million, eight hundred thousand, sixty-one".