73540057501 has 4 divisors (see below), whose sum is σ = 73553058400. Its totient is φ = 73527056604.

The previous prime is 73540057457. The next prime is 73540057553. The reversal of 73540057501 is 10575004537.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 73540057501 - 2¹⁹ = 73539533213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73540057001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6491961 + ... + 6503278.

It is an arithmetic number, because the mean of its divisors is an integer number (18388264600).

Almost surely, 2^73540057501 is an apocalyptic number.

It is an amenable number.

73540057501 is a deficient number, since it is larger than the sum of its proper divisors (13000899).

73540057501 is a wasteful number, since it uses less digits than its factorization.

73540057501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13000898.

The product of its (nonzero) digits is 73500, while the sum is 37.

The spelling of 73540057501 in words is "seventy-three billion, five hundred forty million, fifty-seven thousand, five hundred one".