72425241155537 has 2 divisors, whose sum is σ = 72425241155538. Its totient is φ = 72425241155536.

The previous prime is 72425241155503. The next prime is 72425241155543. The reversal of 72425241155537 is 73555114252427.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53177989320976 + 19247251834561 = 7292324^2 + 4387169^2 .

It is a cyclic number.

It is not a de Polignac number, because 72425241155537 - 2⁶ = 72425241155473 is a prime.

It is not a weakly prime, because it can be changed into another prime (72425241154537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36212620577768 + 36212620577769.

It is an arithmetic number, because the mean of its divisors is an integer number (36212620577769).

Almost surely, 2^{72425241155537} is an apocalyptic number.

It is an amenable number.

72425241155537 is a deficient number, since it is larger than the sum of its proper divisors (1).

72425241155537 is an equidigital number, since it uses as much as digits as its factorization.

72425241155537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11760000, while the sum is 53.

The spelling of 72425241155537 in words is "seventy-two trillion, four hundred twenty-five billion, two hundred forty-one million, one hundred fifty-five thousand, five hundred thirty-seven".