55514580 has 144 divisors (see below), whose sum is σ = 179734464. Its totient is φ = 12695040.

The previous prime is 55514573. The next prime is 55514587. The reversal of 55514580 is 8541555.

It is an interprime number because it is at equal distance from previous prime (55514573) and next prime (55514587).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55514587) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 238144 + ... + 238376.

It is an arithmetic number, because the mean of its divisors is an integer number (1248156).

Almost surely, 2^55514580 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 55514580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89867232).

55514580 is an abundant number, since it is smaller than the sum of its proper divisors (124219884).

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

55514580 is a wasteful number, since it uses less digits than its factorization.

55514580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 33.

The square root of 55514580 is about 7450.8106941460. The cubic root of 55514580 is about 381.4775805073.

The spelling of 55514580 in words is "fifty-five million, five hundred fourteen thousand, five hundred eighty".