2752437421 has 2 divisors, whose sum is σ = 2752437422. Its totient is φ = 2752437420.

The previous prime is 2752437403. The next prime is 2752437427. The reversal of 2752437421 is 1247342572.

2752437421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2752156521 + 280900 = 52461^2 + 530^2 .

It is a cyclic number.

It is not a de Polignac number, because 2752437421 - 2¹⁹ = 2751913133 is a prime.

It is a super-2 number, since 2×2752437421² = 15151823513042262482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2752437427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1376218710 + 1376218711.

It is an arithmetic number, because the mean of its divisors is an integer number (1376218711).

Almost surely, 2^2752437421 is an apocalyptic number.

It is an amenable number.

2752437421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2752437421 is an equidigital number, since it uses as much as digits as its factorization.

2752437421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94080, while the sum is 37.

The square root of 2752437421 is about 52463.6771585828. The cubic root of 2752437421 is about 1401.4334673086.

Adding to 2752437421 its reverse (1247342572), we get a palindrome (3999779993).

The spelling of 2752437421 in words is "two billion, seven hundred fifty-two million, four hundred thirty-seven thousand, four hundred twenty-one".