745537257251 has 2 divisors, whose sum is σ = 745537257252. Its totient is φ = 745537257250.

The previous prime is 745537257221. The next prime is 745537257281. The reversal of 745537257251 is 152752735547.

It is a balanced prime because it is at equal distance from previous prime (745537257221) and next prime (745537257281).

It is an emirp because it is prime and its reverse (152752735547) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 745537257251 - 2³⁰ = 744463515427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 745537257193 and 745537257202.

It is not a weakly prime, because it can be changed into another prime (745537257221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372768628625 + 372768628626.

It is an arithmetic number, because the mean of its divisors is an integer number (372768628626).

Almost surely, 2^745537257251 is an apocalyptic number.

745537257251 is a deficient number, since it is larger than the sum of its proper divisors (1).

745537257251 is an equidigital number, since it uses as much as digits as its factorization.

745537257251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10290000, while the sum is 53.

The spelling of 745537257251 in words is "seven hundred forty-five billion, five hundred thirty-seven million, two hundred fifty-seven thousand, two hundred fifty-one".