2521303741 has 6 divisors (see below), whose sum is σ = 2771350526. Its totient is φ = 2292094200.

The previous prime is 2521303679. The next prime is 2521303747. The reversal of 2521303741 is 1473031252.

It can be written as a sum of positive squares in only one way, i.e., 2327676516 + 193627225 = 48246^2 + 13915^2 .

It is not a de Polignac number, because 2521303741 - 2⁷ = 2521303613 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 (2521303747) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10418490 + ... + 10418731.

Almost surely, 2^2521303741 is an apocalyptic number.

It is an amenable number.

2521303741 is a deficient number, since it is larger than the sum of its proper divisors (250046785).

2521303741 is a wasteful number, since it uses less digits than its factorization.

2521303741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20837243 (or 20837232 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 2521303741 is about 50212.5854841194. The cubic root of 2521303741 is about 1361.0530592889.

Adding to 2521303741 its reverse (1473031252), we get a palindrome (3994334993).

The spelling of 2521303741 in words is "two billion, five hundred twenty-one million, three hundred three thousand, seven hundred forty-one".