55201142 has 32 divisors (see below), whose sum is σ = 91736064. Its totient is φ = 24796800.

The previous prime is 55201141. The next prime is 55201147. The reversal of 55201142 is 24110255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55201141) 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, 87167 + ... + 87797.

It is an arithmetic number, because the mean of its divisors is an integer number (2866752).

Almost surely, 2^55201142 is an apocalyptic number.

55201142 is a deficient number, since it is larger than the sum of its proper divisors (36534922).

55201142 is a wasteful number, since it uses less digits than its factorization.

55201142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 55201142 is about 7429.7471020217. The cubic root of 55201142 is about 380.7582781170.

Adding to 55201142 its reverse (24110255), we get a palindrome (79311397).

The spelling of 55201142 in words is "fifty-five million, two hundred one thousand, one hundred forty-two".