55257235 has 8 divisors (see below), whose sum is σ = 72336816. Its totient is φ = 40187040.

The previous prime is 55257233. The next prime is 55257253. The reversal of 55257235 is 53275255.

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

It is not a de Polignac number, because 55257235 - 2¹ = 55257233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55257235.

It is not an unprimeable number, because it can be changed into a prime (55257233) 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, 502284 + ... + 502393.

It is an arithmetic number, because the mean of its divisors is an integer number (9042102).

Almost surely, 2^55257235 is an apocalyptic number.

55257235 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55257235 is a deficient number, since it is larger than the sum of its proper divisors (17079581).

55257235 is a wasteful number, since it uses less digits than its factorization.

55257235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004693.

The product of its digits is 52500, while the sum is 34.

The square root of 55257235 is about 7433.5210364941. The cubic root of 55257235 is about 380.8872044586.

The spelling of 55257235 in words is "fifty-five million, two hundred fifty-seven thousand, two hundred thirty-five".