55890141 has 4 divisors (see below), whose sum is σ = 74520192. Its totient is φ = 37260092.

The previous prime is 55890103. The next prime is 55890157. The reversal of 55890141 is 14109855.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55890141 - 2⁹ = 55889629 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55890181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9315021 + ... + 9315026.

It is an arithmetic number, because the mean of its divisors is an integer number (18630048).

Almost surely, 2^55890141 is an apocalyptic number.

It is an amenable number.

55890141 is a deficient number, since it is larger than the sum of its proper divisors (18630051).

55890141 is a wasteful number, since it uses less digits than its factorization.

55890141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18630050.

The product of its (nonzero) digits is 7200, while the sum is 33.

The square root of 55890141 is about 7475.9709068455. The cubic root of 55890141 is about 382.3358909826.

Adding to 55890141 its reverse (14109855), we get a palindrome (69999996).

The spelling of 55890141 in words is "fifty-five million, eight hundred ninety thousand, one hundred forty-one".