240155553 has 16 divisors (see below), whose sum is σ = 353246400. Its totient is φ = 143911680.

The previous prime is 240155551. The next prime is 240155579. The reversal of 240155553 is 355551042.

It is a happy number.

240155553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 240155553 - 2¹ = 240155551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240155553.

It is not an unprimeable number, because it can be changed into a prime (240155551) 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, 37948 + ... + 43821.

It is an arithmetic number, because the mean of its divisors is an integer number (22077900).

Almost surely, 2^240155553 is an apocalyptic number.

It is an amenable number.

240155553 is a deficient number, since it is larger than the sum of its proper divisors (113090847).

240155553 is a wasteful number, since it uses less digits than its factorization.

240155553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81872.

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 240155553 is about 15496.9530230946. The cubic root of 240155553 is about 621.5807331219.

The spelling of 240155553 in words is "two hundred forty million, one hundred fifty-five thousand, five hundred fifty-three".