73015057 has 2 divisors, whose sum is σ = 73015058. Its totient is φ = 73015056.

The previous prime is 73015031. The next prime is 73015091. The reversal of 73015057 is 75051037.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65918161 + 7096896 = 8119^2 + 2664^2 .

It is an emirp because it is prime and its reverse (75051037) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73015057 - 2²³ = 64626449 is a prime.

It is equal to p_4284901 and since 73015057 and 4284901 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (73016057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36507528 + 36507529.

It is an arithmetic number, because the mean of its divisors is an integer number (36507529).

Almost surely, 2^73015057 is an apocalyptic number.

It is an amenable number.

73015057 is a deficient number, since it is larger than the sum of its proper divisors (1).

73015057 is an equidigital number, since it uses as much as digits as its factorization.

73015057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3675, while the sum is 28.

The square root of 73015057 is about 8544.8848441626. The cubic root of 73015057 is about 417.9626520510.

The spelling of 73015057 in words is "seventy-three million, fifteen thousand, fifty-seven".