2125151225531 has 2 divisors, whose sum is σ = 2125151225532. Its totient is φ = 2125151225530.

The previous prime is 2125151225503. The next prime is 2125151225573. The reversal of 2125151225531 is 1355221515212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2125151225531 - 2⁶ = 2125151225467 is a prime.

It is a super-2 number, since 2×2125151225531² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2125151225491 and 2125151225500.

It is not a weakly prime, because it can be changed into another prime (2125151225501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062575612765 + 1062575612766.

It is an arithmetic number, because the mean of its divisors is an integer number (1062575612766).

Almost surely, 2^{2125151225531} is an apocalyptic number.

2125151225531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2125151225531 is an equidigital number, since it uses as much as digits as its factorization.

2125151225531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30000, while the sum is 35.

The spelling of 2125151225531 in words is "two trillion, one hundred twenty-five billion, one hundred fifty-one million, two hundred twenty-five thousand, five hundred thirty-one".