55253406 has 64 divisors (see below), whose sum is σ = 130798080. Its totient is φ = 15396480.

The previous prime is 55253371. The next prime is 55253411. The reversal of 55253406 is 60435255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33276 + ... + 34896.

It is an arithmetic number, because the mean of its divisors is an integer number (2043720).

Almost surely, 2^55253406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55253406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65399040).

55253406 is an abundant number, since it is smaller than the sum of its proper divisors (75544674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55253406 is a wasteful number, since it uses less digits than its factorization.

55253406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 55253406 is about 7433.2634824820. The cubic root of 55253406 is about 380.8784065109.

The spelling of 55253406 in words is "fifty-five million, two hundred fifty-three thousand, four hundred six".