61040506 has 16 divisors (see below), whose sum is σ = 97306920. Its totient is φ = 28618240.

The previous prime is 61040479. The next prime is 61040509. The reversal of 61040506 is 60504016.

It can be written as a sum of positive squares in 4 ways, for example, as 45900625 + 15139881 = 6775^2 + 3891^2 .

It is not an unprimeable number, because it can be changed into a prime (61040509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6360 + ... + 12748.

Almost surely, 2^61040506 is an apocalyptic number.

61040506 is a deficient number, since it is larger than the sum of its proper divisors (36266414).

61040506 is a wasteful number, since it uses less digits than its factorization.

61040506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6689.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 61040506 is about 7812.8423764978. The cubic root of 61040506 is about 393.7368311376.

The spelling of 61040506 in words is "sixty-one million, forty thousand, five hundred six".