72250427 has 8 divisors (see below), whose sum is σ = 73053696. Its totient is φ = 71451072.

The previous prime is 72250411. The next prime is 72250433. The reversal of 72250427 is 72405227.

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 72250427 - 2⁴ = 72250411 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72250427.

It is not an unprimeable number, because it can be changed into a prime (72250447) 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, 49703 + ... + 51135.

It is an arithmetic number, because the mean of its divisors is an integer number (9131712).

Almost surely, 2^72250427 is an apocalyptic number.

72250427 is a deficient number, since it is larger than the sum of its proper divisors (803269).

72250427 is a wasteful number, since it uses less digits than its factorization.

72250427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957.

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 72250427 is about 8500.0251176099. The cubic root of 72250427 is about 416.4985297789.

The spelling of 72250427 in words is "seventy-two million, two hundred fifty thousand, four hundred twenty-seven".