55145202 has 32 divisors (see below), whose sum is σ = 126572544. Its totient is φ = 15690000.

The previous prime is 55145183. The next prime is 55145213. The reversal of 55145202 is 20254155.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7927 + ... + 13157.

It is an arithmetic number, because the mean of its divisors is an integer number (3955392).

Almost surely, 2^55145202 is an apocalyptic number.

55145202 is an abundant number, since it is smaller than the sum of its proper divisors (71427342).

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

55145202 is a wasteful number, since it uses less digits than its factorization.

55145202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5494.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 55145202 is about 7425.9815512833. The cubic root of 55145202 is about 380.6296164248.

Adding to 55145202 its reverse (20254155), we get a palindrome (75399357).

It can be divided in two parts, 551 and 45202, that added together give a triangular number (45753 = T₃₀₂).

The spelling of 55145202 in words is "fifty-five million, one hundred forty-five thousand, two hundred two".