61636265 has 16 divisors (see below), whose sum is σ = 76370880. Its totient is φ = 47718720.

The previous prime is 61636261. The next prime is 61636279. The reversal of 61636265 is 56263616.

It is not a de Polignac number, because 61636265 - 2² = 61636261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61636261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38246 + ... + 39824.

It is an arithmetic number, because the mean of its divisors is an integer number (4773180).

Almost surely, 2^61636265 is an apocalyptic number.

It is an amenable number.

61636265 is a deficient number, since it is larger than the sum of its proper divisors (14734615).

61636265 is a wasteful number, since it uses less digits than its factorization.

61636265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832.

The product of its digits is 38880, while the sum is 35.

The square root of 61636265 is about 7850.8767026365. The cubic root of 61636265 is about 395.0136511866.

The spelling of 61636265 in words is "sixty-one million, six hundred thirty-six thousand, two hundred sixty-five".