61113253 has 4 divisors (see below), whose sum is σ = 64329760. Its totient is φ = 57896748.

The previous prime is 61113223. The next prime is 61113259. The reversal of 61113253 is 35231116.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-61113253 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 (61113259) 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, 1608225 + ... + 1608262.

It is an arithmetic number, because the mean of its divisors is an integer number (16082440).

Almost surely, 2^61113253 is an apocalyptic number.

It is an amenable number.

61113253 is a deficient number, since it is larger than the sum of its proper divisors (3216507).

61113253 is a wasteful number, since it uses less digits than its factorization.

61113253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3216506.

The product of its digits is 540, while the sum is 22.

The square root of 61113253 is about 7817.4965941790. The cubic root of 61113253 is about 393.8931852477.

Adding to 61113253 its reverse (35231116), we get a palindrome (96344369).

The spelling of 61113253 in words is "sixty-one million, one hundred thirteen thousand, two hundred fifty-three".