61533205 has 8 divisors (see below), whose sum is σ = 74007000. Its totient is φ = 49115136.

The previous prime is 61533161. The next prime is 61533247. The reversal of 61533205 is 50233516.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 427716 + 61105489 = 654^2 + 7817^2 .

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 61533205 - 2¹⁵ = 61500437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61533205.

It is a congruent 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, 11460 + ... + 15949.

It is an arithmetic number, because the mean of its divisors is an integer number (9250875).

Almost surely, 2^61533205 is an apocalyptic number.

It is an amenable number.

61533205 is a deficient number, since it is larger than the sum of its proper divisors (12473795).

61533205 is a wasteful number, since it uses less digits than its factorization.

61533205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27863.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 61533205 is about 7844.3103584700. The cubic root of 61533205 is about 394.7933651910.

The spelling of 61533205 in words is "sixty-one million, five hundred thirty-three thousand, two hundred five".