61953047 has 4 divisors (see below), whose sum is σ = 66718680. Its totient is φ = 57187416.

The previous prime is 61953037. The next prime is 61953061. The reversal of 61953047 is 74035916.

61953047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 61953047 - 2⁸ = 61952791 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61952998 and 61953016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61953037) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2382797 + ... + 2382822.

It is an arithmetic number, because the mean of its divisors is an integer number (16679670).

Almost surely, 2^61953047 is an apocalyptic number.

61953047 is a deficient number, since it is larger than the sum of its proper divisors (4765633).

61953047 is a wasteful number, since it uses less digits than its factorization.

61953047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4765632.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 61953047 is about 7871.0257908357. The cubic root of 61953047 is about 395.6892245079.

The spelling of 61953047 in words is "sixty-one million, nine hundred fifty-three thousand, forty-seven".