61605050 has 24 divisors (see below), whose sum is σ = 123400956. Its totient is φ = 22746240.

The previous prime is 61605031. The next prime is 61605101. The reversal of 61605050 is 5050616.

It can be written as a sum of positive squares in 6 ways, for example, as 3829849 + 57775201 = 1957^2 + 7601^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46739 + ... + 48038.

Almost surely, 2^61605050 is an apocalyptic number.

61605050 is an abundant number, since it is smaller than the sum of its proper divisors (61795906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61605050 is a wasteful number, since it uses less digits than its factorization.

61605050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94802 (or 94797 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 61605050 is about 7848.8884563357. Note that the first 3 decimals coincide. The cubic root of 61605050 is about 394.9469565049.

Adding to 61605050 its reverse (5050616), we get a palindrome (66655666).

It can be divided in two parts, 616050 and 50, that multiplied together give a square (30802500 = 5550²).

The spelling of 61605050 in words is "sixty-one million, six hundred five thousand, fifty".