1252557 has 16 divisors (see below), whose sum is σ = 1937280. Its totient is φ = 798336.

The previous prime is 1252523. The next prime is 1252579. The reversal of 1252557 is 7552521.

It is a happy number.

It is not a de Polignac number, because 1252557 - 2⁷ = 1252429 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1252557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 388 + ... + 1629.

It is an arithmetic number, because the mean of its divisors is an integer number (121080).

2^1252557 is an apocalyptic number.

It is an amenable number.

1252557 is a deficient number, since it is larger than the sum of its proper divisors (684723).

1252557 is a wasteful number, since it uses less digits than its factorization.

1252557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049 (or 2043 counting only the distinct ones).

The product of its digits is 3500, while the sum is 27.

The square root of 1252557 is about 1119.1769297122. The cubic root of 1252557 is about 107.7951363341.

The spelling of 1252557 in words is "one million, two hundred fifty-two thousand, five hundred fifty-seven".