424040025511 has 4 divisors (see below), whose sum is σ = 424218420832. Its totient is φ = 423861630192.

The previous prime is 424040025503. The next prime is 424040025533. The reversal of 424040025511 is 115520040424.

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 424040025511 - 2³ = 424040025503 is a prime.

It is a super-2 number, since 2×424040025511² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 424040025511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424040020511) 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, 89194095 + ... + 89198848.

It is an arithmetic number, because the mean of its divisors is an integer number (106054605208).

Almost surely, 2^424040025511 is an apocalyptic number.

424040025511 is a deficient number, since it is larger than the sum of its proper divisors (178395321).

424040025511 is a wasteful number, since it uses less digits than its factorization.

424040025511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178395320.

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 424040025511 its reverse (115520040424), we get a palindrome (539560065935).

The spelling of 424040025511 in words is "four hundred twenty-four billion, forty million, twenty-five thousand, five hundred eleven".