75478923053 has 2 divisors, whose sum is σ = 75478923054. Its totient is φ = 75478923052.

The previous prime is 75478923031. The next prime is 75478923071. The reversal of 75478923053 is 35032987457.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75283286884 + 195636169 = 274378^2 + 13987^2 .

It is a cyclic number.

It is not a de Polignac number, because 75478923053 - 2⁶ = 75478922989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75478922986 and 75478923004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75478923073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37739461526 + 37739461527.

It is an arithmetic number, because the mean of its divisors is an integer number (37739461527).

Almost surely, 2^75478923053 is an apocalyptic number.

It is an amenable number.

75478923053 is a deficient number, since it is larger than the sum of its proper divisors (1).

75478923053 is an equidigital number, since it uses as much as digits as its factorization.

75478923053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6350400, while the sum is 53.

The spelling of 75478923053 in words is "seventy-five billion, four hundred seventy-eight million, nine hundred twenty-three thousand, fifty-three".