61516002 has 16 divisors (see below), whose sum is σ = 123125760. Its totient is φ = 20489712.

The previous prime is 61515967. The next prime is 61516051. The reversal of 61516002 is 20061516.

It is a happy number.

61516002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 61516002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6943 + ... + 13085.

It is an arithmetic number, because the mean of its divisors is an integer number (7695360).

Almost surely, 2^61516002 is an apocalyptic number.

61516002 is an abundant number, since it is smaller than the sum of its proper divisors (61609758).

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

61516002 is a wasteful number, since it uses less digits than its factorization.

61516002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7817.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 61516002 is about 7843.2137545779. The cubic root of 61516002 is about 394.7565706219.

Adding to 61516002 its reverse (20061516), we get a palindrome (81577518).

The spelling of 61516002 in words is "sixty-one million, five hundred sixteen thousand, two".