61755523 has 2 divisors, whose sum is σ = 61755524. Its totient is φ = 61755522.

The previous prime is 61755493. The next prime is 61755557. The reversal of 61755523 is 32555716.

It is an a-pointer prime, because the next prime (61755557) can be obtained adding 61755523 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61755523 - 2²¹ = 59658371 is a prime.

It is not a weakly prime, because it can be changed into another prime (61755563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30877761 + 30877762.

It is an arithmetic number, because the mean of its divisors is an integer number (30877762).

Almost surely, 2^61755523 is an apocalyptic number.

61755523 is a deficient number, since it is larger than the sum of its proper divisors (1).

61755523 is an equidigital number, since it uses as much as digits as its factorization.

61755523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31500, while the sum is 34.

The square root of 61755523 is about 7858.4682349679. The cubic root of 61755523 is about 395.2682533958.

The spelling of 61755523 in words is "sixty-one million, seven hundred fifty-five thousand, five hundred twenty-three".