55493560428 has 96 divisors (see below), whose sum is σ = 139139804160. Its totient is φ = 17151912960.

The previous prime is 55493560427. The next prime is 55493560501. The reversal of 55493560428 is 82406539455.

It is a happy number.

55493560428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (55493560427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7909450 + ... + 7916462.

It is an arithmetic number, because the mean of its divisors is an integer number (1449372960).

Almost surely, 2^55493560428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55493560428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69569902080).

55493560428 is an abundant number, since it is smaller than the sum of its proper divisors (83646243732).

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

55493560428 is a wasteful number, since it uses less digits than its factorization.

55493560428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7607 (or 7605 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 51.

The spelling of 55493560428 in words is "fifty-five billion, four hundred ninety-three million, five hundred sixty thousand, four hundred twenty-eight".