61465505 has 8 divisors (see below), whose sum is σ = 74519592. Its totient is φ = 48665088.

The previous prime is 61465493. The next prime is 61465511. The reversal of 61465505 is 50556416.

It can be written as a sum of positive squares in 4 ways, for example, as 2835856 + 58629649 = 1684^2 + 7657^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61465505 - 2⁶ = 61465441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62882 + ... + 63851.

It is an arithmetic number, because the mean of its divisors is an integer number (9314949).

Almost surely, 2^61465505 is an apocalyptic number.

It is an amenable number.

61465505 is a deficient number, since it is larger than the sum of its proper divisors (13054087).

61465505 is a wasteful number, since it uses less digits than its factorization.

61465505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126835.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 61465505 is about 7839.9939413242. The cubic root of 61465505 is about 394.6485256751.

The spelling of 61465505 in words is "sixty-one million, four hundred sixty-five thousand, five hundred five".