55238511 has 8 divisors (see below), whose sum is σ = 73776304. Its totient is φ = 36763200.

The previous prime is 55238501. The next prime is 55238539. The reversal of 55238511 is 11583255.

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

It is not a de Polignac number, because 55238511 - 2⁷ = 55238383 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 (55238501) 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, 13516 + ... + 17121.

It is an arithmetic number, because the mean of its divisors is an integer number (9222038).

Almost surely, 2^55238511 is an apocalyptic number.

55238511 is a deficient number, since it is larger than the sum of its proper divisors (18537793).

55238511 is a wasteful number, since it uses less digits than its factorization.

55238511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31241.

The product of its digits is 6000, while the sum is 30.

The square root of 55238511 is about 7432.2614997052. The cubic root of 55238511 is about 380.8441781912.

The spelling of 55238511 in words is "fifty-five million, two hundred thirty-eight thousand, five hundred eleven".