511126425401 has 2 divisors, whose sum is σ = 511126425402. Its totient is φ = 511126425400.

The previous prime is 511126425373. The next prime is 511126425413. The reversal of 511126425401 is 104524621115.

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., 494383359376 + 16743066025 = 703124^2 + 129395^2 .

It is a cyclic number.

It is not a de Polignac number, because 511126425401 - 2³⁴ = 493946556217 is a prime.

It is a super-2 number, since 2×511126425401² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (511126325401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255563212700 + 255563212701.

It is an arithmetic number, because the mean of its divisors is an integer number (255563212701).

Almost surely, 2^511126425401 is an apocalyptic number.

It is an amenable number.

511126425401 is a deficient number, since it is larger than the sum of its proper divisors (1).

511126425401 is an equidigital number, since it uses as much as digits as its factorization.

511126425401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 32.

The spelling of 511126425401 in words is "five hundred eleven billion, one hundred twenty-six million, four hundred twenty-five thousand, four hundred one".