61248253 has 4 divisors (see below), whose sum is σ = 66816288. Its totient is φ = 55680220.

The previous prime is 61248247. The next prime is 61248259. The reversal of 61248253 is 35284216.

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 an interprime number because it is at equal distance from previous prime (61248247) and next prime (61248259).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61248253 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61248259) 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, 2784001 + ... + 2784022.

It is an arithmetic number, because the mean of its divisors is an integer number (16704072).

Almost surely, 2^61248253 is an apocalyptic number.

It is an amenable number.

61248253 is a deficient number, since it is larger than the sum of its proper divisors (5568035).

61248253 is a wasteful number, since it uses less digits than its factorization.

61248253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5568034.

The product of its digits is 11520, while the sum is 31.

The square root of 61248253 is about 7826.1263087175. The cubic root of 61248253 is about 394.1830103957.

The spelling of 61248253 in words is "sixty-one million, two hundred forty-eight thousand, two hundred fifty-three".