72375522 has 32 divisors (see below), whose sum is σ = 153600000. Its totient is φ = 22670928.

The previous prime is 72375509. The next prime is 72375529. The reversal of 72375522 is 22557327.

It is not an unprimeable number, because it can be changed into a prime (72375529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11979 + ... + 16977.

It is an arithmetic number, because the mean of its divisors is an integer number (4800000).

Almost surely, 2^72375522 is an apocalyptic number.

72375522 is an abundant number, since it is smaller than the sum of its proper divisors (81224478).

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

72375522 is a wasteful number, since it uses less digits than its factorization.

72375522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5150.

The product of its digits is 29400, while the sum is 33.

The square root of 72375522 is about 8507.3804428860. The cubic root of 72375522 is about 416.7387675406.

It can be divided in two parts, 723 and 75522, that added together give a triangular number (76245 = T₃₉₀).

The spelling of 72375522 in words is "seventy-two million, three hundred seventy-five thousand, five hundred twenty-two".