72450425 has 6 divisors (see below), whose sum is σ = 89838558. Its totient is φ = 57960320.

The previous prime is 72450419. The next prime is 72450461. The reversal of 72450425 is 52405427.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 6775609 + 65674816 = 2603^2 + 8104^2 .

It is not a de Polignac number, because 72450425 - 2⁴ = 72450409 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1448984 + ... + 1449033.

It is an arithmetic number, because the mean of its divisors is an integer number (14973093).

Almost surely, 2^72450425 is an apocalyptic number.

It is an amenable number.

72450425 is a deficient number, since it is larger than the sum of its proper divisors (17388133).

72450425 is a wasteful number, since it uses less digits than its factorization.

72450425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2898027 (or 2898022 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 72450425 is about 8511.7815408996. The cubic root of 72450425 is about 416.8824819755.

The spelling of 72450425 in words is "seventy-two million, four hundred fifty thousand, four hundred twenty-five".