2561562201 has 8 divisors (see below), whose sum is σ = 3725908704. Its totient is φ = 1552461920.

The previous prime is 2561562151. The next prime is 2561562247. The reversal of 2561562201 is 1022651652.

2561562201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2561562201 - 2¹⁴ = 2561545817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2561562251) 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, 38811516 + ... + 38811581.

It is an arithmetic number, because the mean of its divisors is an integer number (465738588).

Almost surely, 2^2561562201 is an apocalyptic number.

It is an amenable number.

2561562201 is a deficient number, since it is larger than the sum of its proper divisors (1164346503).

2561562201 is a wasteful number, since it uses less digits than its factorization.

2561562201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77623111.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 2561562201 is about 50611.8780623679. The cubic root of 2561562201 is about 1368.2589638975.

The spelling of 2561562201 in words is "two billion, five hundred sixty-one million, five hundred sixty-two thousand, two hundred one".