55539523 has 8 divisors (see below), whose sum is σ = 60053616. Its totient is φ = 51060000.

The previous prime is 55539509. The next prime is 55539541. The reversal of 55539523 is 32593555.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55539523 - 2²¹ = 53442371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55539593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5248 + ... + 11773.

It is an arithmetic number, because the mean of its divisors is an integer number (7506702).

Almost surely, 2^55539523 is an apocalyptic number.

55539523 is a deficient number, since it is larger than the sum of its proper divisors (4514093).

55539523 is a wasteful number, since it uses less digits than its factorization.

55539523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17285.

The product of its digits is 101250, while the sum is 37.

The square root of 55539523 is about 7452.4843508725. The cubic root of 55539523 is about 381.5347052636.

The spelling of 55539523 in words is "fifty-five million, five hundred thirty-nine thousand, five hundred twenty-three".