61353403 has 2 divisors, whose sum is σ = 61353404. Its totient is φ = 61353402.

The previous prime is 61353367. The next prime is 61353407. The reversal of 61353403 is 30435316.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61353403 - 2¹⁷ = 61222331 is a prime.

It is not a weakly prime, because it can be changed into another prime (61353407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30676701 + 30676702.

It is an arithmetic number, because the mean of its divisors is an integer number (30676702).

Almost surely, 2^61353403 is an apocalyptic number.

61353403 is a deficient number, since it is larger than the sum of its proper divisors (1).

61353403 is an equidigital number, since it uses as much as digits as its factorization.

61353403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 61353403 is about 7832.8413107888. The cubic root of 61353403 is about 394.4084570810.

Adding to 61353403 its reverse (30435316), we get a palindrome (91788719).

The spelling of 61353403 in words is "sixty-one million, three hundred fifty-three thousand, four hundred three".