55011512 has 8 divisors (see below), whose sum is σ = 103146600. Its totient is φ = 27505752.

The previous prime is 55011499. The next prime is 55011527. The reversal of 55011512 is 21511055.

It is a happy number.

55011512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×55011512² = 6052532905052288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3438212 + ... + 3438227.

It is an arithmetic number, because the mean of its divisors is an integer number (12893325).

Almost surely, 2^55011512 is an apocalyptic number.

It is an amenable number.

55011512 is a deficient number, since it is larger than the sum of its proper divisors (48135088).

55011512 is a wasteful number, since it uses less digits than its factorization.

55011512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6876445 (or 6876441 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 20.

The square root of 55011512 is about 7416.9745853683. The cubic root of 55011512 is about 380.3217773092.

Adding to 55011512 its reverse (21511055), we get a palindrome (76522567).

The spelling of 55011512 in words is "fifty-five million, eleven thousand, five hundred twelve".