61764503 has 2 divisors, whose sum is σ = 61764504. Its totient is φ = 61764502.

The previous prime is 61764481. The next prime is 61764509. The reversal of 61764503 is 30546716.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61764503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61764503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61764509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30882251 + 30882252.

It is an arithmetic number, because the mean of its divisors is an integer number (30882252).

Almost surely, 2^61764503 is an apocalyptic number.

61764503 is a deficient number, since it is larger than the sum of its proper divisors (1).

61764503 is an equidigital number, since it uses as much as digits as its factorization.

61764503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 61764503 is about 7859.0395723651. The cubic root of 61764503 is about 395.2874113955.

The spelling of 61764503 in words is "sixty-one million, seven hundred sixty-four thousand, five hundred three".