125005077 has 6 divisors (see below), whose sum is σ = 180562902. Its totient is φ = 83336712.

The previous prime is 125005073. The next prime is 125005081. The reversal of 125005077 is 770500521.

It is an interprime number because it is at equal distance from previous prime (125005073) and next prime (125005081).

It can be written as a sum of positive squares in only one way, i.e., 92275236 + 32729841 = 9606^2 + 5721^2 .

It is not a de Polignac number, because 125005077 - 2² = 125005073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125005077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125005073) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6944718 + ... + 6944735.

It is an arithmetic number, because the mean of its divisors is an integer number (30093817).

Almost surely, 2^125005077 is an apocalyptic number.

It is an amenable number.

125005077 is a deficient number, since it is larger than the sum of its proper divisors (55557825).

125005077 is a wasteful number, since it uses less digits than its factorization.

125005077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13889459 (or 13889456 counting only the distinct ones).

The product of its (nonzero) digits is 2450, while the sum is 27.

The square root of 125005077 is about 11180.5669355360. The cubic root of 125005077 is about 500.0067692417.

Adding to 125005077 its reverse (770500521), we get a palindrome (895505598).

The spelling of 125005077 in words is "one hundred twenty-five million, five thousand, seventy-seven".