61032513 has 16 divisors (see below), whose sum is σ = 83030400. Its totient is φ = 39866880.

The previous prime is 61032493. The next prime is 61032529. The reversal of 61032513 is 31523016.

It is not a de Polignac number, because 61032513 - 2⁵ = 61032481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61032513.

It is not an unprimeable number, because it can be changed into a prime (61032563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65233 + ... + 66161.

It is an arithmetic number, because the mean of its divisors is an integer number (5189400).

Almost surely, 2^61032513 is an apocalyptic number.

It is an amenable number.

61032513 is a deficient number, since it is larger than the sum of its proper divisors (21997887).

61032513 is a wasteful number, since it uses less digits than its factorization.

61032513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 61032513 is about 7812.3308301684. The cubic root of 61032513 is about 393.7196443215.

Adding to 61032513 its reverse (31523016), we get a palindrome (92555529).

The spelling of 61032513 in words is "sixty-one million, thirty-two thousand, five hundred thirteen".