125450059849 has 2 divisors, whose sum is σ = 125450059850. Its totient is φ = 125450059848.

The previous prime is 125450059831. The next prime is 125450059877. The reversal of 125450059849 is 948950054521.

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., 68522485824 + 56927574025 = 261768^2 + 238595^2 .

It is a cyclic number.

It is not a de Polignac number, because 125450059849 - 2²⁷ = 125315842121 is a prime.

It is a super-2 number, since 2×125450059849² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 125450059796 and 125450059805.

It is not a weakly prime, because it can be changed into another prime (125450059549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62725029924 + 62725029925.

It is an arithmetic number, because the mean of its divisors is an integer number (62725029925).

Almost surely, 2^125450059849 is an apocalyptic number.

It is an amenable number.

125450059849 is a deficient number, since it is larger than the sum of its proper divisors (1).

125450059849 is an equidigital number, since it uses as much as digits as its factorization.

125450059849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592000, while the sum is 52.

The spelling of 125450059849 in words is "one hundred twenty-five billion, four hundred fifty million, fifty-nine thousand, eight hundred forty-nine".