125552442839 has 2 divisors, whose sum is σ = 125552442840. Its totient is φ = 125552442838.

The previous prime is 125552442817. The next prime is 125552442887. The reversal of 125552442839 is 938244255521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125552442839 - 2³⁶ = 56832966103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125552442439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62776221419 + 62776221420.

It is an arithmetic number, because the mean of its divisors is an integer number (62776221420).

Almost surely, 2^125552442839 is an apocalyptic number.

125552442839 is a deficient number, since it is larger than the sum of its proper divisors (1).

125552442839 is an equidigital number, since it uses as much as digits as its factorization.

125552442839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456000, while the sum is 50.

The spelling of 125552442839 in words is "one hundred twenty-five billion, five hundred fifty-two million, four hundred forty-two thousand, eight hundred thirty-nine".