61026530 has 16 divisors (see below), whose sum is σ = 110148984. Its totient is φ = 24343680.

The previous prime is 61026529. The next prime is 61026533. The reversal of 61026530 is 3562016.

It can be written as a sum of positive squares in 4 ways, for example, as 46881409 + 14145121 = 6847^2 + 3761^2 .

It is a junction number, because it is equal to n+sod(n) for n = 61026496 and 61026505.

It is not an unprimeable number, because it can be changed into a prime (61026533) 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, 4451 + ... + 11910.

Almost surely, 2^61026530 is an apocalyptic number.

61026530 is a deficient number, since it is larger than the sum of its proper divisors (49122454).

61026530 is a wasteful number, since it uses less digits than its factorization.

61026530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16741.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 61026530 is about 7811.9479004919. The cubic root of 61026530 is about 393.7067784925.

Adding to 61026530 its reverse (3562016), we get a palindrome (64588546).

The spelling of 61026530 in words is "sixty-one million, twenty-six thousand, five hundred thirty".