72025066 has 4 divisors (see below), whose sum is σ = 108037602. Its totient is φ = 36012532.

The previous prime is 72025049. The next prime is 72025087. The reversal of 72025066 is 66052027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66052027 = 2179 ⋅30313.

It can be written as a sum of positive squares in only one way, i.e., 61168041 + 10857025 = 7821^2 + 3295^2 .

It is a super-2 number, since 2×72025066² = 10375220264608712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18006265 + ... + 18006268.

Almost surely, 2^72025066 is an apocalyptic number.

72025066 is a deficient number, since it is larger than the sum of its proper divisors (36012536).

72025066 is a wasteful number, since it uses less digits than its factorization.

72025066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36012535.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 72025066 is about 8486.7582739230. The cubic root of 72025066 is about 416.0650362138.

The spelling of 72025066 in words is "seventy-two million, twenty-five thousand, sixty-six".