55145141502 has 16 divisors (see below), whose sum is σ = 120316672512. Its totient is φ = 16710648920.

The previous prime is 55145141483. The next prime is 55145141507. The reversal of 55145141502 is 20514154155.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55145141507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417766158 + ... + 417766289.

It is an arithmetic number, because the mean of its divisors is an integer number (7519792032).

Almost surely, 2^55145141502 is an apocalyptic number.

55145141502 is an abundant number, since it is smaller than the sum of its proper divisors (65171531010).

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

55145141502 is a wasteful number, since it uses less digits than its factorization.

55145141502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835532463.

The product of its (nonzero) digits is 20000, while the sum is 33.

Adding to 55145141502 its reverse (20514154155), we get a palindrome (75659295657).

The spelling of 55145141502 in words is "fifty-five billion, one hundred forty-five million, one hundred forty-one thousand, five hundred two".