2562632645 has 16 divisors (see below), whose sum is σ = 3105406512. Its totient is φ = 2029977600.

The previous prime is 2562632641. The next prime is 2562632651. The reversal of 2562632645 is 5462362652.

It can be written as a sum of positive squares in 8 ways, for example, as 17833729 + 2544798916 = 4223^2 + 50446^2 .

It is not a de Polignac number, because 2562632645 - 2² = 2562632641 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2562632641) 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, 903149 + ... + 905981.

It is an arithmetic number, because the mean of its divisors is an integer number (194087907).

Almost surely, 2^2562632645 is an apocalyptic number.

It is an amenable number.

2562632645 is a deficient number, since it is larger than the sum of its proper divisors (542773867).

2562632645 is a wasteful number, since it uses less digits than its factorization.

2562632645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4552.

The product of its digits is 518400, while the sum is 41.

The square root of 2562632645 is about 50622.4519852605. The cubic root of 2562632645 is about 1368.4495299808.

The spelling of 2562632645 in words is "two billion, five hundred sixty-two million, six hundred thirty-two thousand, six hundred forty-five".