72054755 has 8 divisors (see below), whose sum is σ = 91552032. Its totient is φ = 54252928.

The previous prime is 72054751. The next prime is 72054781. The reversal of 72054755 is 55745027.

It is a happy number.

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 72054755 - 2² = 72054751 is a prime.

It is a super-2 number, since 2×72054755² = 10383775436220050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72054751) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423767 + ... + 423936.

It is an arithmetic number, because the mean of its divisors is an integer number (11444004).

Almost surely, 2^72054755 is an apocalyptic number.

72054755 is a deficient number, since it is larger than the sum of its proper divisors (19497277).

72054755 is a wasteful number, since it uses less digits than its factorization.

72054755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847725.

The product of its (nonzero) digits is 49000, while the sum is 35.

The square root of 72054755 is about 8488.5072303674. The cubic root of 72054755 is about 416.1221962123.

The spelling of 72054755 in words is "seventy-two million, fifty-four thousand, seven hundred fifty-five".