65772534 has 8 divisors (see below), whose sum is σ = 131545080. Its totient is φ = 21924176.

The previous prime is 65772529. The next prime is 65772559. The reversal of 65772534 is 43527756.

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

65772534 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 65772492 and 65772501.

It is a congruent number.

It is an unprimeable number.

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, 5481039 + ... + 5481050.

It is an arithmetic number, because the mean of its divisors is an integer number (16443135).

Almost surely, 2^65772534 is an apocalyptic number.

65772534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

65772534 is a wasteful number, since it uses less digits than its factorization.

65772534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10962094.

The product of its digits is 176400, while the sum is 39.

The square root of 65772534 is about 8110.0267570459. The cubic root of 65772534 is about 403.6592026813.

The spelling of 65772534 in words is "sixty-five million, seven hundred seventy-two thousand, five hundred thirty-four".