61011530 has 16 divisors (see below), whose sum is σ = 109970784. Its totient is φ = 24371280.

The previous prime is 61011523. The next prime is 61011541. The reversal of 61011530 is 3511016.

It is a junction number, because it is equal to n+sod(n) for n = 61011499 and 61011508.

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, 4349 + ... + 11871.

It is an arithmetic number, because the mean of its divisors is an integer number (6873174).

Almost surely, 2^61011530 is an apocalyptic number.

61011530 is a deficient number, since it is larger than the sum of its proper divisors (48959254).

61011530 is a wasteful number, since it uses less digits than its factorization.

61011530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8341.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 61011530 is about 7810.9877736430. The cubic root of 61011530 is about 393.6745188311.

Adding to 61011530 its reverse (3511016), we get a palindrome (64522546).

The spelling of 61011530 in words is "sixty-one million, eleven thousand, five hundred thirty".