245411332531 has 4 divisors (see below), whose sum is σ = 245414536864. Its totient is φ = 245408128200.

The previous prime is 245411332487. The next prime is 245411332561. The reversal of 245411332531 is 135233114542.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135233114542 = 2 ⋅67616557271.

It is a cyclic number.

It is not a de Polignac number, because 245411332531 - 2²⁹ = 244874461619 is a prime.

It is a super-2 number, since 2×245411332531² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245411332561) 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, 1484400 + ... + 1641421.

It is an arithmetic number, because the mean of its divisors is an integer number (61353634216).

Almost surely, 2^245411332531 is an apocalyptic number.

245411332531 is a deficient number, since it is larger than the sum of its proper divisors (3204333).

245411332531 is an equidigital number, since it uses as much as digits as its factorization.

245411332531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3204332.

The product of its digits is 43200, while the sum is 34.

The spelling of 245411332531 in words is "two hundred forty-five billion, four hundred eleven million, three hundred thirty-two thousand, five hundred thirty-one".