55475074560 has 320 divisors, whose sum is σ = 191345913792. Its totient is φ = 13658750976.

The previous prime is 55475074553. The next prime is 55475074561. The reversal of 55475074560 is 6547057455.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55475074561) 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, 6915672 + ... + 6923688.

Almost surely, 2^55475074560 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 55475074560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95672956896).

55475074560 is an abundant number, since it is smaller than the sum of its proper divisors (135870839232).

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

55475074560 is a wasteful number, since it uses less digits than its factorization.

55475074560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8113 (or 8097 counting only the distinct ones).

The product of its (nonzero) digits is 2940000, while the sum is 48.

The spelling of 55475074560 in words is "fifty-five billion, four hundred seventy-five million, seventy-four thousand, five hundred sixty".