55400511244 has 72 divisors (see below), whose sum is σ = 107096109120. Its totient is φ = 25057386432.

The previous prime is 55400511241. The next prime is 55400511247. The reversal of 55400511244 is 44211500455.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55400511241) and next prime (55400511247).

It is not an unprimeable number, because it can be changed into a prime (55400511241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13837747 + ... + 13841749.

It is an arithmetic number, because the mean of its divisors is an integer number (1487445960).

Almost surely, 2^55400511244 is an apocalyptic number.

It is an amenable number.

55400511244 is a deficient number, since it is larger than the sum of its proper divisors (51695597876).

55400511244 is a wasteful number, since it uses less digits than its factorization.

55400511244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4439 (or 4424 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 31.

The spelling of 55400511244 in words is "fifty-five billion, four hundred million, five hundred eleven thousand, two hundred forty-four".