55006740 has 36 divisors (see below), whose sum is σ = 166854324. Its totient is φ = 14668416.

The previous prime is 55006727. The next prime is 55006751. The reversal of 55006740 is 4760055.

It can be written as a sum of positive squares in 2 ways, for example, as 7064964 + 47941776 = 2658^2 + 6924^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152617 + ... + 152976.

Almost surely, 2^55006740 is an apocalyptic number.

It is an amenable number.

55006740 is an abundant number, since it is smaller than the sum of its proper divisors (111847584).

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

55006740 is a wasteful number, since it uses less digits than its factorization.

55006740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305608 (or 305603 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 55006740 is about 7416.6528838823. The cubic root of 55006740 is about 380.3107799262.

Adding to 55006740 its reverse (4760055), we get a palindrome (59766795).

The spelling of 55006740 in words is "fifty-five million, six thousand, seven hundred forty".