1025625530731 has 2 divisors, whose sum is σ = 1025625530732. Its totient is φ = 1025625530730.

The previous prime is 1025625530723. The next prime is 1025625530819. The reversal of 1025625530731 is 1370355265201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1025625530731 - 2³ = 1025625530723 is a prime.

It is a super-2 number, since 2×1025625530731² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1025625530701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512812765365 + 512812765366.

It is an arithmetic number, because the mean of its divisors is an integer number (512812765366).

Almost surely, 2^{1025625530731} is an apocalyptic number.

1025625530731 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025625530731 is an equidigital number, since it uses as much as digits as its factorization.

1025625530731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 189000, while the sum is 40.

The spelling of 1025625530731 in words is "one trillion, twenty-five billion, six hundred twenty-five million, five hundred thirty thousand, seven hundred thirty-one".