612006253 has 8 divisors (see below), whose sum is σ = 616595000. Its totient is φ = 607426560.

The previous prime is 612006251. The next prime is 612006259. The reversal of 612006253 is 352600216.

It can be written as a sum of positive squares in 4 ways, for example, as 11854249 + 600152004 = 3443^2 + 24498^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 612006253 - 2¹ = 612006251 is a prime.

It is a super-2 number, since 2×612006253² = 749103307422200018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612006251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194533 + ... + 197653.

It is an arithmetic number, because the mean of its divisors is an integer number (77074375).

It is a Poulet number, since it divides 2^612006252-1.

Almost surely, 2^612006253 is an apocalyptic number.

It is an amenable number.

612006253 is a deficient number, since it is larger than the sum of its proper divisors (4588747).

612006253 is a wasteful number, since it uses less digits than its factorization.

612006253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4527.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 612006253 is about 24738.7601346551. The cubic root of 612006253 is about 849.0213664323.

Adding to 612006253 its reverse (352600216), we get a palindrome (964606469).

The spelling of 612006253 in words is "six hundred twelve million, six thousand, two hundred fifty-three".