55221342504 has 16 divisors (see below), whose sum is σ = 138053356320. Its totient is φ = 18407114160.

The previous prime is 55221342497. The next prime is 55221342521. The reversal of 55221342504 is 40524312255.

It is a happy number.

55221342504 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×55221342504³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1150444612 + ... + 1150444659.

It is an arithmetic number, because the mean of its divisors is an integer number (8628334770).

Almost surely, 2^55221342504 is an apocalyptic number.

It is an amenable number.

55221342504 is an abundant number, since it is smaller than the sum of its proper divisors (82832013816).

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

55221342504 is a wasteful number, since it uses less digits than its factorization.

55221342504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2300889280 (or 2300889276 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 55221342504 its reverse (40524312255), we get a palindrome (95745654759).

The spelling of 55221342504 in words is "fifty-five billion, two hundred twenty-one million, three hundred forty-two thousand, five hundred four".