55203363772 has 12 divisors (see below), whose sum is σ = 99937124280. Its totient is φ = 26649899696.

The previous prime is 55203363769. The next prime is 55203363779. The reversal of 55203363772 is 27736330255.

It is a happy number.

It is a super-2 number, since 2×55203363772² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55203363779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237945418 + ... + 237945649.

It is an arithmetic number, because the mean of its divisors is an integer number (8328093690).

Almost surely, 2^55203363772 is an apocalyptic number.

It is an amenable number.

55203363772 is a deficient number, since it is larger than the sum of its proper divisors (44733760508).

55203363772 is a wasteful number, since it uses less digits than its factorization.

55203363772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475891100 (or 475891098 counting only the distinct ones).

The product of its (nonzero) digits is 793800, while the sum is 43.

The spelling of 55203363772 in words is "fifty-five billion, two hundred three million, three hundred sixty-three thousand, seven hundred seventy-two".