55361512 has 8 divisors (see below), whose sum is σ = 103802850. Its totient is φ = 27680752.

The previous prime is 55361507. The next prime is 55361513. The reversal of 55361512 is 21516355.

It can be written as a sum of positive squares in only one way, i.e., 42068196 + 13293316 = 6486^2 + 3646^2 .

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

It is a super-2 number, since 2×55361512² = 6129794021852288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55361513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3460087 + ... + 3460102.

Almost surely, 2^55361512 is an apocalyptic number.

It is an amenable number.

55361512 is a deficient number, since it is larger than the sum of its proper divisors (48441338).

55361512 is a wasteful number, since it uses less digits than its factorization.

55361512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6920195 (or 6920191 counting only the distinct ones).

The product of its digits is 4500, while the sum is 28.

The square root of 55361512 is about 7440.5317014310. The cubic root of 55361512 is about 381.1266471133.

Adding to 55361512 its reverse (21516355), we get a palindrome (76877867).

The spelling of 55361512 in words is "fifty-five million, three hundred sixty-one thousand, five hundred twelve".