1252725 has 12 divisors (see below), whose sum is σ = 2071296. Its totient is φ = 668080.

The previous prime is 1252721. The next prime is 1252729. The reversal of 1252725 is 5272521.

It is an interprime number because it is at equal distance from previous prime (1252721) and next prime (1252729).

It is not a de Polignac number, because 1252725 - 2² = 1252721 is a prime.

It is an Ulam number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1252695 and 1252704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252721) 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, 8277 + ... + 8426.

It is an arithmetic number, because the mean of its divisors is an integer number (172608).

2^1252725 is an apocalyptic number.

1252725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1252725 is a deficient number, since it is larger than the sum of its proper divisors (818571).

1252725 is a wasteful number, since it uses less digits than its factorization.

1252725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16716 (or 16711 counting only the distinct ones).

The product of its digits is 1400, while the sum is 24.

The square root of 1252725 is about 1119.2519823525. The cubic root of 1252725 is about 107.7999554823.

It can be divided in two parts, 125 and 2725, that added together give a triangular number (2850 = T₇₅).

The spelling of 1252725 in words is "one million, two hundred fifty-two thousand, seven hundred twenty-five".