55022513 has 12 divisors (see below), whose sum is σ = 68093568. Its totient is φ = 43533360.

The previous prime is 55022507. The next prime is 55022521. The reversal of 55022513 is 31522055.

It is not a de Polignac number, because 55022513 - 2¹⁰ = 55021489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55022543) 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, 22073 + ... + 24438.

It is an arithmetic number, because the mean of its divisors is an integer number (5674464).

Almost surely, 2^55022513 is an apocalyptic number.

It is an amenable number.

55022513 is a deficient number, since it is larger than the sum of its proper divisors (13071055).

55022513 is a wasteful number, since it uses less digits than its factorization.

55022513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46544 (or 46531 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 55022513 is about 7417.7161579559. The cubic root of 55022513 is about 380.3471274033.

Adding to 55022513 its reverse (31522055), we get a palindrome (86544568).

The spelling of 55022513 in words is "fifty-five million, twenty-two thousand, five hundred thirteen".