55262242731 has 8 divisors (see below), whose sum is σ = 74782736704. Its totient is φ = 36291621960.

The previous prime is 55262242723. The next prime is 55262242757. The reversal of 55262242731 is 13724226255.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55262242731 - 2³ = 55262242723 is a prime.

It is a super-2 number, since 2×55262242731² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55262242731.

It is not an unprimeable number, because it can be changed into a prime (55262232731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137468065 + ... + 137468466.

It is an arithmetic number, because the mean of its divisors is an integer number (9347842088).

Almost surely, 2^55262242731 is an apocalyptic number.

55262242731 is a deficient number, since it is larger than the sum of its proper divisors (19520493973).

55262242731 is a wasteful number, since it uses less digits than its factorization.

55262242731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274936601.

The product of its digits is 201600, while the sum is 39.

Adding to 55262242731 its reverse (13724226255), we get a palindrome (68986468986).

The spelling of 55262242731 in words is "fifty-five billion, two hundred sixty-two million, two hundred forty-two thousand, seven hundred thirty-one".