1025253 has 12 divisors (see below), whose sum is σ = 1568268. Its totient is φ = 643200.

The previous prime is 1025239. The next prime is 1025257. The reversal of 1025253 is 3525201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 613089 + 412164 = 783^2 + 642^2 .

It is not a de Polignac number, because 1025253 - 2⁸ = 1024997 is a prime.

It is a super-2 number, since 2×1025253² = 2102287428018, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025257) 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, 3198 + ... + 3503.

It is an arithmetic number, because the mean of its divisors is an integer number (130689).

2^1025253 is an apocalyptic number.

It is an amenable number.

1025253 is a deficient number, since it is larger than the sum of its proper divisors (543015).

1025253 is a wasteful number, since it uses less digits than its factorization.

1025253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6724 (or 6721 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 1025253 is about 1012.5477766506. The cubic root of 1025253 is about 100.8347787209.

The spelling of 1025253 in words is "one million, twenty-five thousand, two hundred fifty-three".