55575195390 has 384 divisors, whose sum is σ = 176149416960. Its totient is φ = 12359692800.

The previous prime is 55575195353. The next prime is 55575195437. The reversal of 55575195390 is 9359157555.

55575195390 is a `hidden beast` number, since 5 + 5 + 57 + 51 + 9 + 539 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 132007380 + ... + 132007800.

It is an arithmetic number, because the mean of its divisors is an integer number (458722440).

Almost surely, 2^55575195390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55575195390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88074708480).

55575195390 is an abundant number, since it is smaller than the sum of its proper divisors (120574221570).

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

55575195390 is a wasteful number, since it uses less digits than its factorization.

55575195390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737 (or 718 counting only the distinct ones).

The product of its (nonzero) digits is 5315625, while the sum is 54.

The spelling of 55575195390 in words is "fifty-five billion, five hundred seventy-five million, one hundred ninety-five thousand, three hundred ninety".