61005253 has 4 divisors (see below), whose sum is σ = 62493228. Its totient is φ = 59517280.

The previous prime is 61005251. The next prime is 61005283. The reversal of 61005253 is 35250016.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11682724 + 49322529 = 3418^2 + 7023^2 .

It is a cyclic number.

It is not a de Polignac number, because 61005253 - 2¹ = 61005251 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 (61005251) 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, 743926 + ... + 744007.

It is an arithmetic number, because the mean of its divisors is an integer number (15623307).

Almost surely, 2^61005253 is an apocalyptic number.

It is an amenable number.

61005253 is a deficient number, since it is larger than the sum of its proper divisors (1487975).

61005253 is a wasteful number, since it uses less digits than its factorization.

61005253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487974.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 61005253 is about 7810.5859575323. The cubic root of 61005253 is about 393.6610176688.

Adding to 61005253 its reverse (35250016), we get a palindrome (96255269).

The spelling of 61005253 in words is "sixty-one million, five thousand, two hundred fifty-three".