61022516 has 6 divisors (see below), whose sum is σ = 106789410. Its totient is φ = 30511256.

The previous prime is 61022459. The next prime is 61022531. The reversal of 61022516 is 61522016.

It can be written as a sum of positive squares in only one way, i.e., 56942116 + 4080400 = 7546^2 + 2020^2 .

It is a junction number, because it is equal to n+sod(n) for n = 61022491 and 61022500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7627811 + ... + 7627818.

It is an arithmetic number, because the mean of its divisors is an integer number (17798235).

Almost surely, 2^61022516 is an apocalyptic number.

It is an amenable number.

61022516 is a deficient number, since it is larger than the sum of its proper divisors (45766894).

61022516 is a wasteful number, since it uses less digits than its factorization.

61022516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15255633 (or 15255631 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 61022516 is about 7811.6909821114. The cubic root of 61022516 is about 393.6981463252.

Subtracting 61022516 from its reverse (61522016), we obtain a triangular number (499500 = T₉₉₉).

The spelling of 61022516 in words is "sixty-one million, twenty-two thousand, five hundred sixteen".