61300253 has 4 divisors (see below), whose sum is σ = 70057440. Its totient is φ = 52543068.

The previous prime is 61300223. The next prime is 61300259. The reversal of 61300253 is 35200316.

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 61300253 - 2²⁰ = 60251677 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 (61300259) 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, 4378583 + ... + 4378596.

It is an arithmetic number, because the mean of its divisors is an integer number (17514360).

Almost surely, 2^61300253 is an apocalyptic number.

It is an amenable number.

61300253 is a deficient number, since it is larger than the sum of its proper divisors (8757187).

61300253 is an equidigital number, since it uses as much as digits as its factorization.

61300253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8757186.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 61300253 is about 7829.4478093924. The cubic root of 61300253 is about 394.2945331328.

Adding to 61300253 its reverse (35200316), we get a palindrome (96500569).

The spelling of 61300253 in words is "sixty-one million, three hundred thousand, two hundred fifty-three".