1250725 has 18 divisors (see below), whose sum is σ = 1805874. Its totient is φ = 856800.

The previous prime is 1250701. The next prime is 1250737. The reversal of 1250725 is 5270521.

1250725 = T₂₀₁ + T₂₀₂ + ... + T₂₄₉.

1250725 = 133² + 134² + ... + 182².

It can be written as a sum of positive squares in 3 ways, for example, as 103684 + 1147041 = 322^2 + 1071^2 .

It is not a de Polignac number, because 1250725 - 2¹⁷ = 1119653 is a prime.

It is an alternating number because its digits alternate between odd and even.

1250725 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1250696 and 1250705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 715 + ... + 1735.

2^1250725 is an apocalyptic number.

It is an amenable number.

1250725 is a deficient number, since it is larger than the sum of its proper divisors (555149).

1250725 is a wasteful number, since it uses less digits than its factorization.

1250725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045 (or 1033 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 1250725 is about 1118.3581716069. The cubic root of 1250725 is about 107.7425566785.

The spelling of 1250725 in words is "one million, two hundred fifty thousand, seven hundred twenty-five".