55506099 has 16 divisors (see below), whose sum is σ = 80864640. Its totient is φ = 33586560.

The previous prime is 55506097. The next prime is 55506103. The reversal of 55506099 is 99060555.

It is not a de Polignac number, because 55506099 - 2¹ = 55506097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55506097) 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, 32464 + ... + 34130.

It is an arithmetic number, because the mean of its divisors is an integer number (5054040).

Almost surely, 2^55506099 is an apocalyptic number.

55506099 is a deficient number, since it is larger than the sum of its proper divisors (25358541).

55506099 is a wasteful number, since it uses less digits than its factorization.

55506099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2690.

The product of its (nonzero) digits is 60750, while the sum is 39.

The square root of 55506099 is about 7450.2415397086. The cubic root of 55506099 is about 381.4581533218.

The spelling of 55506099 in words is "fifty-five million, five hundred six thousand, ninety-nine".