1377107525 has 12 divisors (see below), whose sum is σ = 1808061732. Its totient is φ = 1036880640.

The previous prime is 1377107521. The next prime is 1377107527. The reversal of 1377107525 is 5257017731.

It can be written as a sum of positive squares in 6 ways, for example, as 174266401 + 1202841124 = 13201^2 + 34682^2 .

It is not a de Polignac number, because 1377107525 - 2² = 1377107521 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1377107521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1619702 + ... + 1620551.

It is an arithmetic number, because the mean of its divisors is an integer number (150671811).

Almost surely, 2^1377107525 is an apocalyptic number.

It is an amenable number.

1377107525 is a deficient number, since it is larger than the sum of its proper divisors (430954207).

1377107525 is a wasteful number, since it uses less digits than its factorization.

1377107525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3240280 (or 3240275 counting only the distinct ones).

The product of its (nonzero) digits is 51450, while the sum is 38.

The square root of 1377107525 is about 37109.3994157814. The cubic root of 1377107525 is about 1112.5578878265.

The spelling of 1377107525 in words is "one billion, three hundred seventy-seven million, one hundred seven thousand, five hundred twenty-five".