2025531405531 has 12 divisors (see below), whose sum is σ = 2925824143320. Its totient is φ = 1350328166880.

The previous prime is 2025531405461. The next prime is 2025531405563. The reversal of 2025531405531 is 1355041355202.

2025531405531 is a `hidden beast` number, since 2 + 0 + 2 + 5 + 531 + 40 + 55 + 31 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-2025531405531 is a prime.

It is a super-2 number, since 2×2025531405531² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2025531455531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1677861 + ... + 2620358.

It is an arithmetic number, because the mean of its divisors is an integer number (243818678610).

Almost surely, 2^{2025531405531} is an apocalyptic number.

2025531405531 is a deficient number, since it is larger than the sum of its proper divisors (900292737789).

2025531405531 is a wasteful number, since it uses less digits than its factorization.

2025531405531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4350586 (or 4350583 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The spelling of 2025531405531 in words is "two trillion, twenty-five billion, five hundred thirty-one million, four hundred five thousand, five hundred thirty-one".