240454255531 has 16 divisors (see below), whose sum is σ = 284869737216. Its totient is φ = 198659113056.

The previous prime is 240454255511. The next prime is 240454255549. The reversal of 240454255531 is 135552454042.

It is a cyclic number.

It is not a de Polignac number, because 240454255531 - 2³¹ = 238306771883 is a prime.

It is a super-2 number, since 2×240454255531² (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 (240454255511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4310581 + ... + 4366006.

It is an arithmetic number, because the mean of its divisors is an integer number (17804358576).

Almost surely, 2^240454255531 is an apocalyptic number.

240454255531 is a deficient number, since it is larger than the sum of its proper divisors (44415481685).

240454255531 is a wasteful number, since it uses less digits than its factorization.

240454255531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8676738.

The product of its (nonzero) digits is 480000, while the sum is 40.

The spelling of 240454255531 in words is "two hundred forty billion, four hundred fifty-four million, two hundred fifty-five thousand, five hundred thirty-one".