61536005 has 16 divisors (see below), whose sum is σ = 78380784. Its totient is φ = 46218240.

The previous prime is 61535987. The next prime is 61536037. The reversal of 61536005 is 50063516.

It can be written as a sum of positive squares in 8 ways, for example, as 101761 + 61434244 = 319^2 + 7838^2 .

It is not a de Polignac number, because 61536005 - 2¹² = 61531909 is a prime.

It is a super-2 number, since 2×61536005² = 7573359822720050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51515 + ... + 52695.

It is an arithmetic number, because the mean of its divisors is an integer number (4898799).

Almost surely, 2^61536005 is an apocalyptic number.

It is an amenable number.

61536005 is a deficient number, since it is larger than the sum of its proper divisors (16844779).

61536005 is a wasteful number, since it uses less digits than its factorization.

61536005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1816.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 61536005 is about 7844.4888297454. The cubic root of 61536005 is about 394.7993533110.

The spelling of 61536005 in words is "sixty-one million, five hundred thirty-six thousand, five".