55245245402 has 8 divisors (see below), whose sum is σ = 82878574356. Its totient is φ = 27619053952.

The previous prime is 55245245381. The next prime is 55245245437. The reversal of 55245245402 is 20454254255.

It can be written as a sum of positive squares in 2 ways, for example, as 55172842321 + 72403081 = 234889^2 + 8509^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1764983 + ... + 1796010.

Almost surely, 2^55245245402 is an apocalyptic number.

55245245402 is a deficient number, since it is larger than the sum of its proper divisors (27633328954).

55245245402 is a wasteful number, since it uses less digits than its factorization.

55245245402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3568752.

The product of its (nonzero) digits is 320000, while the sum is 38.

Adding to 55245245402 its reverse (20454254255), we get a palindrome (75699499657).

The spelling of 55245245402 in words is "fifty-five billion, two hundred forty-five million, two hundred forty-five thousand, four hundred two".