240250120540553 has 4 divisors (see below), whose sum is σ = 240311268449940. Its totient is φ = 240188972631168.

The previous prime is 240250120540501. The next prime is 240250120540621. The reversal of 240250120540553 is 355045021052042.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 112222411746064 + 128027708794489 = 10593508^2 + 11314933^2 .

It is a cyclic number.

It is not a de Polignac number, because 240250120540553 - 2²² = 240250116346249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240250120540453) 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, 30573948800 + ... + 30573956657.

It is an arithmetic number, because the mean of its divisors is an integer number (60077817112485).

Almost surely, 2^{240250120540553} is an apocalyptic number.

It is an amenable number.

240250120540553 is a deficient number, since it is larger than the sum of its proper divisors (61147909387).

240250120540553 is an equidigital number, since it uses as much as digits as its factorization.

240250120540553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61147909386.

The product of its (nonzero) digits is 240000, while the sum is 38.

Adding to 240250120540553 its reverse (355045021052042), we get a palindrome (595295141592595).

The spelling of 240250120540553 in words is "two hundred forty trillion, two hundred fifty billion, one hundred twenty million, five hundred forty thousand, five hundred fifty-three".