61252705541 has 2 divisors, whose sum is σ = 61252705542. Its totient is φ = 61252705540.

The previous prime is 61252705519. The next prime is 61252705621. The reversal of 61252705541 is 14550725216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58520448100 + 2732257441 = 241910^2 + 52271^2 .

It is a cyclic number.

It is not a de Polignac number, because 61252705541 - 2⁶ = 61252705477 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61252705495 and 61252705504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61252705141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30626352770 + 30626352771.

It is an arithmetic number, because the mean of its divisors is an integer number (30626352771).

Almost surely, 2^61252705541 is an apocalyptic number.

It is an amenable number.

61252705541 is a deficient number, since it is larger than the sum of its proper divisors (1).

61252705541 is an equidigital number, since it uses as much as digits as its factorization.

61252705541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84000, while the sum is 38.

The spelling of 61252705541 in words is "sixty-one billion, two hundred fifty-two million, seven hundred five thousand, five hundred forty-one".