72535651 has 8 divisors (see below), whose sum is σ = 78878880. Its totient is φ = 66423168.

The previous prime is 72535643. The next prime is 72535679. The reversal of 72535651 is 15653527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72535651 - 2³ = 72535643 is a prime.

It is a super-2 number, since 2×72535651² = 10522841331987602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72535051) 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 7 ways as a sum of consecutive naturals, for example, 57031 + ... + 58288.

It is an arithmetic number, because the mean of its divisors is an integer number (9859860).

Almost surely, 2^72535651 is an apocalyptic number.

72535651 is a deficient number, since it is larger than the sum of its proper divisors (6343229).

72535651 is a wasteful number, since it uses less digits than its factorization.

72535651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115373.

The product of its digits is 31500, while the sum is 34.

The square root of 72535651 is about 8516.7864244679. The cubic root of 72535651 is about 417.0458824620.

The spelling of 72535651 in words is "seventy-two million, five hundred thirty-five thousand, six hundred fifty-one".