61052907 has 4 divisors (see below), whose sum is σ = 81403880. Its totient is φ = 40701936.

The previous prime is 61052903. The next prime is 61052921. The reversal of 61052907 is 70925016.

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

It is not a de Polignac number, because 61052907 - 2² = 61052903 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61052903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10175482 + ... + 10175487.

It is an arithmetic number, because the mean of its divisors is an integer number (20350970).

Almost surely, 2^61052907 is an apocalyptic number.

61052907 is a deficient number, since it is larger than the sum of its proper divisors (20350973).

61052907 is a wasteful number, since it uses less digits than its factorization.

61052907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20350972.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 61052907 is about 7813.6359654133. The cubic root of 61052907 is about 393.7634932136.

The spelling of 61052907 in words is "sixty-one million, fifty-two thousand, nine hundred seven".