72025157 has 4 divisors (see below), whose sum is σ = 72123360. Its totient is φ = 71926956.

The previous prime is 72025139. The next prime is 72025189. The reversal of 72025157 is 75152027.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75152027 = 6301 ⋅11927.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72025157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72025127) 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, 47993 + ... + 49470.

It is an arithmetic number, because the mean of its divisors is an integer number (18030840).

Almost surely, 2^72025157 is an apocalyptic number.

It is an amenable number.

72025157 is a deficient number, since it is larger than the sum of its proper divisors (98203).

72025157 is an equidigital number, since it uses as much as digits as its factorization.

72025157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98202.

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 72025157 is about 8486.7636352145. The cubic root of 72025157 is about 416.0652114394.

The spelling of 72025157 in words is "seventy-two million, twenty-five thousand, one hundred fifty-seven".