55215234002 has 4 divisors (see below), whose sum is σ = 82822851006. Its totient is φ = 27607617000.

The previous prime is 55215233939. The next prime is 55215234029. The reversal of 55215234002 is 20043251255.

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., 54111599161 + 1103634841 = 232619^2 + 33221^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13803808499 + ... + 13803808502.

Almost surely, 2^55215234002 is an apocalyptic number.

55215234002 is a deficient number, since it is larger than the sum of its proper divisors (27607617004).

55215234002 is a wasteful number, since it uses less digits than its factorization.

55215234002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27607617003.

The product of its (nonzero) digits is 12000, while the sum is 29.

Adding to 55215234002 its reverse (20043251255), we get a palindrome (75258485257).

The spelling of 55215234002 in words is "fifty-five billion, two hundred fifteen million, two hundred thirty-four thousand, two".