55430335620 has 144 divisors (see below), whose sum is σ = 183496255488. Its totient is φ = 13432366080.

The previous prime is 55430335579. The next prime is 55430335657. The reversal of 55430335620 is 2653303455.

55430335620 is a `hidden beast` number, since 55 + 43 + 0 + 3 + 3 + 562 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7851132 + ... + 7858188.

It is an arithmetic number, because the mean of its divisors is an integer number (1274279552).

Almost surely, 2^55430335620 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 55430335620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91748127744).

55430335620 is an abundant number, since it is smaller than the sum of its proper divisors (128065919868).

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

55430335620 is a wasteful number, since it uses less digits than its factorization.

55430335620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11050 (or 11045 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 36.

The spelling of 55430335620 in words is "fifty-five billion, four hundred thirty million, three hundred thirty-five thousand, six hundred twenty".