61353253 has 6 divisors (see below), whose sum is σ = 66435954. Its totient is φ = 56633616.

The previous prime is 61353233. The next prime is 61353269. The reversal of 61353253 is 35235316.

It can be written as a sum of positive squares in 3 ways, for example, as 3090564 + 58262689 = 1758^2 + 7633^2 .

It is not a de Polignac number, because 61353253 - 2¹⁷ = 61222181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61353203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 181350 + ... + 181687.

It is an arithmetic number, because the mean of its divisors is an integer number (11072659).

Almost surely, 2^61353253 is an apocalyptic number.

It is an amenable number.

61353253 is a deficient number, since it is larger than the sum of its proper divisors (5082701).

61353253 is a wasteful number, since it uses less digits than its factorization.

61353253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363063 (or 363050 counting only the distinct ones).

The product of its digits is 8100, while the sum is 28.

The square root of 61353253 is about 7832.8317357135. The cubic root of 61353253 is about 394.4081356573.

Adding to 61353253 its reverse (35235316), we get a palindrome (96588569).

The spelling of 61353253 in words is "sixty-one million, three hundred fifty-three thousand, two hundred fifty-three".