61753543 has 4 divisors (see below), whose sum is σ = 61900648. Its totient is φ = 61606440.

The previous prime is 61753511. The next prime is 61753567. The reversal of 61753543 is 34535716.

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

It is a cyclic number.

It is not a de Polignac number, because 61753543 - 2⁵ = 61753511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61753499 and 61753508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61753243) 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, 72921 + ... + 73762.

It is an arithmetic number, because the mean of its divisors is an integer number (15475162).

Almost surely, 2^61753543 is an apocalyptic number.

61753543 is a deficient number, since it is larger than the sum of its proper divisors (147105).

61753543 is a wasteful number, since it uses less digits than its factorization.

61753543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147104.

The product of its digits is 37800, while the sum is 34.

The square root of 61753543 is about 7858.3422552088. The cubic root of 61753543 is about 395.2640289990.

The spelling of 61753543 in words is "sixty-one million, seven hundred fifty-three thousand, five hundred forty-three".