55515033 has 12 divisors (see below), whose sum is σ = 91643968. Its totient is φ = 31722840.

The previous prime is 55515023. The next prime is 55515041. The reversal of 55515033 is 33051555.

It is not a de Polignac number, because 55515033 - 2⁵ = 55515001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55514988 and 55515006.

It is not an unprimeable number, because it can be changed into a prime (55515023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 440533 + ... + 440658.

Almost surely, 2^55515033 is an apocalyptic number.

It is an amenable number.

55515033 is a deficient number, since it is larger than the sum of its proper divisors (36128935).

55515033 is a wasteful number, since it uses less digits than its factorization.

55515033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881204 (or 881201 counting only the distinct ones).

The product of its (nonzero) digits is 5625, while the sum is 27.

The square root of 55515033 is about 7450.8410934605. The cubic root of 55515033 is about 381.4786181258.

Adding to 55515033 its reverse (33051555), we get a palindrome (88566588).

The spelling of 55515033 in words is "fifty-five million, five hundred fifteen thousand, thirty-three".