55530501 has 16 divisors (see below), whose sum is σ = 81592896. Its totient is φ = 33376896.

The previous prime is 55530499. The next prime is 55530511. The reversal of 55530501 is 10503555.

It is not a de Polignac number, because 55530501 - 2¹ = 55530499 is a prime.

It is a super-2 number, since 2×55530501² = 6167273082622002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55530511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14880 + ... + 18233.

It is an arithmetic number, because the mean of its divisors is an integer number (5099556).

Almost surely, 2^55530501 is an apocalyptic number.

It is an amenable number.

55530501 is a deficient number, since it is larger than the sum of its proper divisors (26062395).

55530501 is a wasteful number, since it uses less digits than its factorization.

55530501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33172.

The product of its (nonzero) digits is 1875, while the sum is 24.

The square root of 55530501 is about 7451.8790247829. The cubic root of 55530501 is about 381.5140449462.

The spelling of 55530501 in words is "fifty-five million, five hundred thirty thousand, five hundred one".