240376515553 has 2 divisors, whose sum is σ = 240376515554. Its totient is φ = 240376515552.

The previous prime is 240376515499. The next prime is 240376515569. The reversal of 240376515553 is 355515673042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142327371169 + 98049144384 = 377263^2 + 313128^2 .

It is a cyclic number.

It is not a de Polignac number, because 240376515553 - 2¹³ = 240376507361 is a prime.

It is not a weakly prime, because it can be changed into another prime (240376510553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120188257776 + 120188257777.

It is an arithmetic number, because the mean of its divisors is an integer number (120188257777).

Almost surely, 2^240376515553 is an apocalyptic number.

It is an amenable number.

240376515553 is a deficient number, since it is larger than the sum of its proper divisors (1).

240376515553 is an equidigital number, since it uses as much as digits as its factorization.

240376515553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890000, while the sum is 46.

The spelling of 240376515553 in words is "two hundred forty billion, three hundred seventy-six million, five hundred fifteen thousand, five hundred fifty-three".