61212052 has 12 divisors (see below), whose sum is σ = 116859456. Its totient is φ = 27823640.

The previous prime is 61212049. The next prime is 61212061. The reversal of 61212052 is 25021216.

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 in 3 ways as a sum of consecutive naturals, for example, 695548 + ... + 695635.

It is an arithmetic number, because the mean of its divisors is an integer number (9738288).

Almost surely, 2^61212052 is an apocalyptic number.

It is an amenable number.

61212052 is a deficient number, since it is larger than the sum of its proper divisors (55647404).

61212052 is a wasteful number, since it uses less digits than its factorization.

61212052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391198 (or 1391196 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 61212052 is about 7823.8131368278. The cubic root of 61212052 is about 394.1053339952.

Adding to 61212052 its reverse (25021216), we get a palindrome (86233268).

The spelling of 61212052 in words is "sixty-one million, two hundred twelve thousand, fifty-two".