61612253 has 4 divisors (see below), whose sum is σ = 62923200. Its totient is φ = 60301308.

The previous prime is 61612241. The next prime is 61612259. The reversal of 61612253 is 35221616.

61612253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 61612253 - 2⁴ = 61612237 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 (61612259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 655403 + ... + 655496.

It is an arithmetic number, because the mean of its divisors is an integer number (15730800).

Almost surely, 2^61612253 is an apocalyptic number.

It is an amenable number.

61612253 is a deficient number, since it is larger than the sum of its proper divisors (1310947).

61612253 is a wasteful number, since it uses less digits than its factorization.

61612253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310946.

The product of its digits is 2160, while the sum is 26.

The square root of 61612253 is about 7849.3472977057. The cubic root of 61612253 is about 394.9623485983.

Adding to 61612253 its reverse (35221616), we get a palindrome (96833869).

The spelling of 61612253 in words is "sixty-one million, six hundred twelve thousand, two hundred fifty-three".