73561063 has 4 divisors (see below), whose sum is σ = 75126240. Its totient is φ = 71995888.

The previous prime is 73561013. The next prime is 73561073. The reversal of 73561063 is 36016537.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36016537 = 3307 ⋅10891.

It is a cyclic number.

It is not a de Polignac number, because 73561063 - 2¹⁷ = 73429991 is a prime.

It is a super-2 number, since 2×73561063² = 10822459979379938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73561013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 782518 + ... + 782611.

It is an arithmetic number, because the mean of its divisors is an integer number (18781560).

Almost surely, 2^73561063 is an apocalyptic number.

73561063 is a deficient number, since it is larger than the sum of its proper divisors (1565177).

73561063 is a wasteful number, since it uses less digits than its factorization.

73561063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565176.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 73561063 is about 8576.7746268629. The cubic root of 73561063 is about 419.0019062613.

The spelling of 73561063 in words is "seventy-three million, five hundred sixty-one thousand, sixty-three".