612540253 has 8 divisors (see below), whose sum is σ = 680938496. Its totient is φ = 547182000.

The previous prime is 612540251. The next prime is 612540263. The reversal of 612540253 is 352045216.

612540253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 612540253 - 2¹ = 612540251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612540251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 759573 + ... + 760378.

It is an arithmetic number, because the mean of its divisors is an integer number (85117312).

Almost surely, 2^612540253 is an apocalyptic number.

It is an amenable number.

612540253 is a deficient number, since it is larger than the sum of its proper divisors (68398243).

612540253 is a wasteful number, since it uses less digits than its factorization.

612540253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1519995.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 612540253 is about 24749.5505615759. The cubic root of 612540253 is about 849.2682297108.

Adding to 612540253 its reverse (352045216), we get a palindrome (964585469).

The spelling of 612540253 in words is "six hundred twelve million, five hundred forty thousand, two hundred fifty-three".