73555542 has 72 divisors (see below), whose sum is σ = 170388504. Its totient is φ = 22917888.

The previous prime is 73555523. The next prime is 73555561. The reversal of 73555542 is 24555537.

It is an interprime number because it is at equal distance from previous prime (73555523) and next prime (73555561).

It is a junction number, because it is equal to n+sod(n) for n = 73555497 and 73555506.

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 650878 + ... + 650990.

It is an arithmetic number, because the mean of its divisors is an integer number (2366507).

Almost surely, 2^73555542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73555542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85194252).

73555542 is an abundant number, since it is smaller than the sum of its proper divisors (96832962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73555542 is a wasteful number, since it uses less digits than its factorization.

73555542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222 (or 190 counting only the distinct ones).

The product of its digits is 105000, while the sum is 36.

The square root of 73555542 is about 8576.4527632349. The cubic root of 73555542 is about 418.9914235081.

The spelling of 73555542 in words is "seventy-three million, five hundred fifty-five thousand, five hundred forty-two".