55251045 has 16 divisors (see below), whose sum is σ = 98224320. Its totient is φ = 29467152.

The previous prime is 55251041. The next prime is 55251047. The reversal of 55251045 is 54015255.

55251045 is a `hidden beast` number, since 552 + 5 + 104 + 5 = 666.

It is not a de Polignac number, because 55251045 - 2² = 55251041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55251041) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 204499 + ... + 204768.

It is an arithmetic number, because the mean of its divisors is an integer number (6139020).

Almost surely, 2^55251045 is an apocalyptic number.

It is an amenable number.

55251045 is a deficient number, since it is larger than the sum of its proper divisors (42973275).

55251045 is a wasteful number, since it uses less digits than its factorization.

55251045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409281 (or 409275 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 55251045 is about 7433.1046676338. The cubic root of 55251045 is about 380.8729814050.

The spelling of 55251045 in words is "fifty-five million, two hundred fifty-one thousand, forty-five".