1006625253 has 4 divisors (see below), whose sum is σ = 1342167008. Its totient is φ = 671083500.

The previous prime is 1006625231. The next prime is 1006625261. The reversal of 1006625253 is 3525266001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1006625253 - 2¹⁸ = 1006363109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1006625253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1006695253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167770873 + ... + 167770878.

It is an arithmetic number, because the mean of its divisors is an integer number (335541752).

Almost surely, 2^1006625253 is an apocalyptic number.

It is an amenable number.

1006625253 is a deficient number, since it is larger than the sum of its proper divisors (335541755).

1006625253 is an equidigital number, since it uses as much as digits as its factorization.

1006625253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335541754.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 1006625253 is about 31727.3581156705. The cubic root of 1006625253 is about 1002.2035584303.

The spelling of 1006625253 in words is "one billion, six million, six hundred twenty-five thousand, two hundred fifty-three".