55001512 has 8 divisors (see below), whose sum is σ = 103127850. Its totient is φ = 27500752.

The previous prime is 55001503. The next prime is 55001519. The reversal of 55001512 is 21510055.

It can be written as a sum of positive squares in only one way, i.e., 47416996 + 7584516 = 6886^2 + 2754^2 .

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

It is a super-2 number, since 2×55001512² = 6050332644572288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55001512.

It is not an unprimeable number, because it can be changed into a prime (55001519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3437587 + ... + 3437602.

Almost surely, 2^55001512 is an apocalyptic number.

It is an amenable number.

55001512 is a deficient number, since it is larger than the sum of its proper divisors (48126338).

55001512 is a wasteful number, since it uses less digits than its factorization.

55001512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6875195 (or 6875191 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 55001512 is about 7416.3004254143. The cubic root of 55001512 is about 380.2987309316.

Adding to 55001512 its reverse (21510055), we get a palindrome (76511567).

The spelling of 55001512 in words is "fifty-five million, one thousand, five hundred twelve".