72050057 has 2 divisors, whose sum is σ = 72050058. Its totient is φ = 72050056.

The previous prime is 72050023. The next prime is 72050087. The reversal of 72050057 is 75005027.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71503936 + 546121 = 8456^2 + 739^2 .

It is a cyclic number.

It is not a de Polignac number, because 72050057 - 2¹⁴ = 72033673 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72050087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36025028 + 36025029.

It is an arithmetic number, because the mean of its divisors is an integer number (36025029).

Almost surely, 2^72050057 is an apocalyptic number.

It is an amenable number.

72050057 is a deficient number, since it is larger than the sum of its proper divisors (1).

72050057 is an equidigital number, since it uses as much as digits as its factorization.

72050057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2450, while the sum is 26.

The square root of 72050057 is about 8488.2304987553. The cubic root of 72050057 is about 416.1131522356.

The spelling of 72050057 in words is "seventy-two million, fifty thousand, fifty-seven".