10540053025421 has 2 divisors, whose sum is σ = 10540053025422. Its totient is φ = 10540053025420.

The previous prime is 10540053025409. The next prime is 10540053025429. The reversal of 10540053025421 is 12452035004501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8643541200100 + 1896511825321 = 2939990^2 + 1377139^2 .

It is a cyclic number.

It is not a de Polignac number, because 10540053025421 - 2⁶ = 10540053025357 is a prime.

It is a super-2 number, since 2×10540053025421² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10540053025429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5270026512710 + 5270026512711.

It is an arithmetic number, because the mean of its divisors is an integer number (5270026512711).

Almost surely, 2^{10540053025421} is an apocalyptic number.

It is an amenable number.

10540053025421 is a deficient number, since it is larger than the sum of its proper divisors (1).

10540053025421 is an equidigital number, since it uses as much as digits as its factorization.

10540053025421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 10540053025421 its reverse (12452035004501), we get a palindrome (22992088029922).

The spelling of 10540053025421 in words is "ten trillion, five hundred forty billion, fifty-three million, twenty-five thousand, four hundred twenty-one".