55525525 has 12 divisors (see below), whose sum is σ = 75111264. Its totient is φ = 40382000.

The previous prime is 55525523. The next prime is 55525537. The reversal of 55525525 is 52552555.

It is not a de Polignac number, because 55525525 - 2¹ = 55525523 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55525523) 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, 100681 + ... + 101230.

It is an arithmetic number, because the mean of its divisors is an integer number (6259272).

Almost surely, 2^55525525 is an apocalyptic number.

55525525 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55525525 is a deficient number, since it is larger than the sum of its proper divisors (19585739).

55525525 is a wasteful number, since it uses less digits than its factorization.

55525525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201932 (or 201927 counting only the distinct ones).

The product of its digits is 62500, while the sum is 34.

The square root of 55525525 is about 7451.5451417810. The cubic root of 55525525 is about 381.5026489833.

The spelling of 55525525 in words is "fifty-five million, five hundred twenty-five thousand, five hundred twenty-five".