1025534552131 has 4 divisors (see below), whose sum is σ = 1025565342592. Its totient is φ = 1025503761672.

The previous prime is 1025534552129. The next prime is 1025534552167. The reversal of 1025534552131 is 1312554355201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1025534552131 - 2¹ = 1025534552129 is a prime.

It is a super-2 number, since 2×1025534552131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1025534552191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15345216 + ... + 15411901.

It is an arithmetic number, because the mean of its divisors is an integer number (256391335648).

Almost surely, 2^{1025534552131} is an apocalyptic number.

1025534552131 is a deficient number, since it is larger than the sum of its proper divisors (30790461).

1025534552131 is an equidigital number, since it uses as much as digits as its factorization.

1025534552131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30790460.

The product of its (nonzero) digits is 90000, while the sum is 37.

The spelling of 1025534552131 in words is "one trillion, twenty-five billion, five hundred thirty-four million, five hundred fifty-two thousand, one hundred thirty-one".