55151447 has 16 divisors (see below), whose sum is σ = 62469120. Its totient is φ = 48308832.

The previous prime is 55151419. The next prime is 55151461. The reversal of 55151447 is 74415155.

It is not a de Polignac number, because 55151447 - 2¹⁶ = 55085911 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 (55151647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40898 + ... + 42224.

It is an arithmetic number, because the mean of its divisors is an integer number (3904320).

Almost surely, 2^55151447 is an apocalyptic number.

55151447 is a deficient number, since it is larger than the sum of its proper divisors (7317673).

55151447 is a wasteful number, since it uses less digits than its factorization.

55151447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1502.

The product of its digits is 14000, while the sum is 32.

The square root of 55151447 is about 7426.4020225140. The cubic root of 55151447 is about 380.6439842038.

The spelling of 55151447 in words is "fifty-five million, one hundred fifty-one thousand, four hundred forty-seven".