61265983 has 4 divisors (see below), whose sum is σ = 61419168. Its totient is φ = 61112800.

The previous prime is 61265959. The next prime is 61265987. The reversal of 61265983 is 38956216.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61265983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61265987) 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, 75991 + ... + 76792.

It is an arithmetic number, because the mean of its divisors is an integer number (15354792).

Almost surely, 2^61265983 is an apocalyptic number.

61265983 is a deficient number, since it is larger than the sum of its proper divisors (153185).

61265983 is a wasteful number, since it uses less digits than its factorization.

61265983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153184.

The product of its digits is 77760, while the sum is 40.

The square root of 61265983 is about 7827.2589710575. The cubic root of 61265983 is about 394.2210424493.

The spelling of 61265983 in words is "sixty-one million, two hundred sixty-five thousand, nine hundred eighty-three".