240554200121253 has 6 divisors (see below), whose sum is σ = 347467177952934. Its totient is φ = 160369466747496.

The previous prime is 240554200121173. The next prime is 240554200121267. The reversal of 240554200121253 is 352121002455042.

240554200121253 is a `hidden beast` number, since 2 + 40 + 5 + 542 + 0 + 0 + 1 + 21 + 2 + 53 = 666.

It can be written as a sum of positive squares in only one way, i.e., 229424883781284 + 11129316339969 = 15146778^2 + 3336063^2 .

It is not a de Polignac number, because 240554200121253 - 2¹³ = 240554200113061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240554240121253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13364122228950 + ... + 13364122228967.

It is an arithmetic number, because the mean of its divisors is an integer number (57911196325489).

Almost surely, 2^{240554200121253} is an apocalyptic number.

It is an amenable number.

240554200121253 is a deficient number, since it is larger than the sum of its proper divisors (106912977831681).

240554200121253 is a wasteful number, since it uses less digits than its factorization.

240554200121253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26728244457923 (or 26728244457920 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 240554200121253 its reverse (352121002455042), we get a palindrome (592675202576295).

The spelling of 240554200121253 in words is "two hundred forty trillion, five hundred fifty-four billion, two hundred million, one hundred twenty-one thousand, two hundred fifty-three".