2500235545 has 4 divisors (see below), whose sum is σ = 3000282660. Its totient is φ = 2000188432.

The previous prime is 2500235531. The next prime is 2500235581. The reversal of 2500235545 is 5455320052.

It is a happy number.

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 263607696 + 2236627849 = 16236^2 + 47293^2 .

It is a cyclic number.

It is not a de Polignac number, because 2500235545 - 2⁵ = 2500235513 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 250023550 + ... + 250023559.

It is an arithmetic number, because the mean of its divisors is an integer number (750070665).

Almost surely, 2^2500235545 is an apocalyptic number.

It is an amenable number.

2500235545 is a deficient number, since it is larger than the sum of its proper divisors (500047115).

2500235545 is an equidigital number, since it uses as much as digits as its factorization.

2500235545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500047114.

The product of its (nonzero) digits is 30000, while the sum is 31.

The square root of 2500235545 is about 50002.3553945212. The cubic root of 2500235545 is about 1357.2514314587.

Adding to 2500235545 its reverse (5455320052), we get a palindrome (7955555597).

The spelling of 2500235545 in words is "two billion, five hundred million, two hundred thirty-five thousand, five hundred forty-five".