2501043305 has 16 divisors (see below), whose sum is σ = 3112908624. Its totient is φ = 1927468800.

The previous prime is 2501043277. The next prime is 2501043329. The reversal of 2501043305 is 5033401052.

It can be written as a sum of positive squares in 8 ways, for example, as 1030474201 + 1470569104 = 32101^2 + 38348^2 .

It is not a de Polignac number, because 2501043305 - 2¹² = 2501039209 is a prime.

It is a super-2 number, since 2×2501043305² = 12510435226970646050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48242 + ... + 85611.

It is an arithmetic number, because the mean of its divisors is an integer number (194556789).

Almost surely, 2^2501043305 is an apocalyptic number.

It is an amenable number.

2501043305 is a deficient number, since it is larger than the sum of its proper divisors (611865319).

2501043305 is a wasteful number, since it uses less digits than its factorization.

2501043305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133996.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 2501043305 is about 50010.4319617417. The cubic root of 2501043305 is about 1357.3975797385.

Adding to 2501043305 its reverse (5033401052), we get a palindrome (7534444357).

The spelling of 2501043305 in words is "two billion, five hundred one million, forty-three thousand, three hundred five".