61710563 has 4 divisors (see below), whose sum is σ = 62181768. Its totient is φ = 61239360.

The previous prime is 61710557. The next prime is 61710569. The reversal of 61710563 is 36501716.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (61710557) and next prime (61710569).

It is a cyclic number.

It is not a de Polignac number, because 61710563 - 2⁸ = 61710307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61710569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235406 + ... + 235667.

It is an arithmetic number, because the mean of its divisors is an integer number (15545442).

Almost surely, 2^61710563 is an apocalyptic number.

61710563 is a deficient number, since it is larger than the sum of its proper divisors (471205).

61710563 is a wasteful number, since it uses less digits than its factorization.

61710563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471204.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 61710563 is about 7855.6071057557. The cubic root of 61710563 is about 395.1723074559.

The spelling of 61710563 in words is "sixty-one million, seven hundred ten thousand, five hundred sixty-three".