55151456 has 48 divisors (see below), whose sum is σ = 112266000. Its totient is φ = 26654208.

The previous prime is 55151419. The next prime is 55151461. The reversal of 55151456 is 65415155.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204890 + ... + 205158.

It is an arithmetic number, because the mean of its divisors is an integer number (2338875).

Almost surely, 2^55151456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55151456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56133000).

55151456 is an abundant number, since it is smaller than the sum of its proper divisors (57114544).

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

55151456 is a wasteful number, since it uses less digits than its factorization.

55151456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471 (or 463 counting only the distinct ones).

The product of its digits is 15000, while the sum is 32.

The square root of 55151456 is about 7426.4026284602. The cubic root of 55151456 is about 380.6440049092.

The spelling of 55151456 in words is "fifty-five million, one hundred fifty-one thousand, four hundred fifty-six".