265456425431 has 4 divisors (see below), whose sum is σ = 265778973552. Its totient is φ = 265133877312.

The previous prime is 265456425359. The next prime is 265456425457. The reversal of 265456425431 is 134524654562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134524654562 = 2 ⋅67262327281.

It is a cyclic number.

It is not a de Polignac number, because 265456425431 - 2¹⁴ = 265456409047 is a prime.

It is a super-2 number, since 2×265456425431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265456425461) 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, 161272826 + ... + 161274471.

It is an arithmetic number, because the mean of its divisors is an integer number (66444743388).

Almost surely, 2^265456425431 is an apocalyptic number.

265456425431 is a deficient number, since it is larger than the sum of its proper divisors (322548121).

265456425431 is an equidigital number, since it uses as much as digits as its factorization.

265456425431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322548120.

The product of its digits is 3456000, while the sum is 47.

The spelling of 265456425431 in words is "two hundred sixty-five billion, four hundred fifty-six million, four hundred twenty-five thousand, four hundred thirty-one".