24742745722501 has 2 divisors, whose sum is σ = 24742745722502. Its totient is φ = 24742745722500.

The previous prime is 24742745722477. The next prime is 24742745722567. The reversal of 24742745722501 is 10522754724742.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14943435474276 + 9799310248225 = 3865674^2 + 3130385^2 .

It is a cyclic number.

It is not a de Polignac number, because 24742745722501 - 2²³ = 24742737333893 is a prime.

It is a super-4 number, since 4×24742745722501⁴ (a number of 55 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24742745722001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12371372861250 + 12371372861251.

It is an arithmetic number, because the mean of its divisors is an integer number (12371372861251).

Almost surely, 2^{24742745722501} is an apocalyptic number.

It is an amenable number.

24742745722501 is a deficient number, since it is larger than the sum of its proper divisors (1).

24742745722501 is an equidigital number, since it uses as much as digits as its factorization.

24742745722501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8780800, while the sum is 52.

The spelling of 24742745722501 in words is "twenty-four trillion, seven hundred forty-two billion, seven hundred forty-five million, seven hundred twenty-two thousand, five hundred one".