73513500 has 48 divisors (see below), whose sum is σ = 214075680. Its totient is φ = 19603200.

The previous prime is 73513483. The next prime is 73513501. The reversal of 73513500 is 531537.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73513501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23005 + ... + 26004.

It is an arithmetic number, because the mean of its divisors is an integer number (4459910).

Almost surely, 2^73513500 is an apocalyptic number.

It is an amenable number.

73513500 is an abundant number, since it is smaller than the sum of its proper divisors (140562180).

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

73513500 is a wasteful number, since it uses less digits than its factorization.

73513500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49031 (or 49019 counting only the distinct ones).

The product of its (nonzero) digits is 1575, while the sum is 24.

The square root of 73513500 is about 8574.0013995800. The cubic root of 73513500 is about 418.9115809197.

Subtracting from 73513500 its sum of digits (24), we obtain a square (73513476 = 8574²).

It can be divided in two parts, 735 and 13500, that multiplied together give a square (9922500 = 3150²).

The spelling of 73513500 in words is "seventy-three million, five hundred thirteen thousand, five hundred".