2501236033561 has 8 divisors (see below), whose sum is σ = 2508961184000. Its totient is φ = 2493511899120.

The previous prime is 2501236033537. The next prime is 2501236033601. The reversal of 2501236033561 is 1653306321052.

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

It is a cyclic number.

It is not a de Polignac number, because 2501236033561 - 2³⁵ = 2466876295193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2501236033561.

It is not an unprimeable number, because it can be changed into a prime (2501236733561) 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, 4834360 + ... + 5326678.

It is an arithmetic number, because the mean of its divisors is an integer number (313620148000).

Almost surely, 2^{2501236033561} is an apocalyptic number.

It is an amenable number.

2501236033561 is a deficient number, since it is larger than the sum of its proper divisors (7725150439).

2501236033561 is a wasteful number, since it uses less digits than its factorization.

2501236033561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507999.

The product of its (nonzero) digits is 97200, while the sum is 37.

The spelling of 2501236033561 in words is "two trillion, five hundred one billion, two hundred thirty-six million, thirty-three thousand, five hundred sixty-one".