61836253 has 2 divisors, whose sum is σ = 61836254. Its totient is φ = 61836252.

The previous prime is 61836251. The next prime is 61836283. The reversal of 61836253 is 35263816.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57350329 + 4485924 = 7573^2 + 2118^2 .

It is a cyclic number.

It is not a de Polignac number, because 61836253 - 2¹ = 61836251 is a prime.

It is a super-3 number, since 3×61836253³ (a number of 24 digits) contains 333 as substring.

Together with 61836251, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61836251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30918126 + 30918127.

It is an arithmetic number, because the mean of its divisors is an integer number (30918127).

Almost surely, 2^61836253 is an apocalyptic number.

It is an amenable number.

61836253 is a deficient number, since it is larger than the sum of its proper divisors (1).

61836253 is an equidigital number, since it uses as much as digits as its factorization.

61836253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 34.

The square root of 61836253 is about 7863.6030545800. The cubic root of 61836253 is about 395.4404167362.

The spelling of 61836253 in words is "sixty-one million, eight hundred thirty-six thousand, two hundred fifty-three".