55015243140401 has 4 divisors (see below), whose sum is σ = 56912320490100. Its totient is φ = 53118165790704.

The previous prime is 55015243140373. The next prime is 55015243140433. The reversal of 55015243140401 is 10404134251055.

It is a happy number.

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 29679875909776 + 25335367230625 = 5447924^2 + 5033425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55015243140401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55015243140461) 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, 948538674806 + ... + 948538674863.

It is an arithmetic number, because the mean of its divisors is an integer number (14228080122525).

Almost surely, 2^{55015243140401} is an apocalyptic number.

It is an amenable number.

55015243140401 is a deficient number, since it is larger than the sum of its proper divisors (1897077349699).

55015243140401 is a wasteful number, since it uses less digits than its factorization.

55015243140401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1897077349698.

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 55015243140401 its reverse (10404134251055), we get a palindrome (65419377391456).

The spelling of 55015243140401 in words is "fifty-five trillion, fifteen billion, two hundred forty-three million, one hundred forty thousand, four hundred one".