72075535 has 16 divisors (see below), whose sum is σ = 98989056. Its totient is φ = 49351968.

The previous prime is 72075533. The next prime is 72075539. The reversal of 72075535 is 53557027.

It is a cyclic number.

It is not a de Polignac number, because 72075535 - 2¹ = 72075533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72075535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72075533) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 37672 + ... + 39538.

It is an arithmetic number, because the mean of its divisors is an integer number (6186816).

Almost surely, 2^72075535 is an apocalyptic number.

72075535 is a deficient number, since it is larger than the sum of its proper divisors (26913521).

72075535 is a wasteful number, since it uses less digits than its factorization.

72075535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2982.

The product of its (nonzero) digits is 36750, while the sum is 34.

The square root of 72075535 is about 8489.7311500424. The cubic root of 72075535 is about 416.1621944429.

It can be divided in two parts, 7 and 2075535, that multiplied together give a triangular number (14528745 = T₅₃₉₀).

The spelling of 72075535 in words is "seventy-two million, seventy-five thousand, five hundred thirty-five".