65072554 has 8 divisors (see below), whose sum is σ = 98120448. Its totient is φ = 32365740.

The previous prime is 65072551. The next prime is 65072569. The reversal of 65072554 is 45527056.

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

It is not an unprimeable number, because it can be changed into a prime (65072551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84792 + ... + 85555.

It is an arithmetic number, because the mean of its divisors is an integer number (12265056).

Almost surely, 2^65072554 is an apocalyptic number.

65072554 is a deficient number, since it is larger than the sum of its proper divisors (33047894).

65072554 is a wasteful number, since it uses less digits than its factorization.

65072554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170540.

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 65072554 is about 8066.7561014326. The cubic root of 65072554 is about 402.2221200965. Note that the first 3 decimals are identical.

The spelling of 65072554 in words is "sixty-five million, seventy-two thousand, five hundred fifty-four".