55131034202 has 4 divisors (see below), whose sum is σ = 82696551306. Its totient is φ = 27565517100.

The previous prime is 55131034199. The next prime is 55131034207. The reversal of 55131034202 is 20243013155.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 54014872921 + 1116161281 = 232411^2 + 33409^2 .

It is not an unprimeable number, because it can be changed into a prime (55131034207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13782758549 + ... + 13782758552.

Almost surely, 2^55131034202 is an apocalyptic number.

55131034202 is a deficient number, since it is larger than the sum of its proper divisors (27565517104).

55131034202 is a wasteful number, since it uses less digits than its factorization.

55131034202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27565517103.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 55131034202 its reverse (20243013155), we get a palindrome (75374047357).

The spelling of 55131034202 in words is "fifty-five billion, one hundred thirty-one million, thirty-four thousand, two hundred two".