2535371645 has 4 divisors (see below), whose sum is σ = 3042445980. Its totient is φ = 2028297312.

The previous prime is 2535371617. The next prime is 2535371651. The reversal of 2535371645 is 5461735352.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1262451961 + 1272919684 = 35531^2 + 35678^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2535371645 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253537160 + ... + 253537169.

It is an arithmetic number, because the mean of its divisors is an integer number (760611495).

Almost surely, 2^2535371645 is an apocalyptic number.

It is an amenable number.

2535371645 is a deficient number, since it is larger than the sum of its proper divisors (507074335).

2535371645 is an equidigital number, since it uses as much as digits as its factorization.

2535371645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507074334.

The product of its digits is 378000, while the sum is 41.

The square root of 2535371645 is about 50352.4740702977. The cubic root of 2535371645 is about 1363.5797497701.

The spelling of 2535371645 in words is "two billion, five hundred thirty-five million, three hundred seventy-one thousand, six hundred forty-five".