55195647540 has 48 divisors (see below), whose sum is σ = 168597616320. Its totient is φ = 13380762880.

The previous prime is 55195647527. The next prime is 55195647547. The reversal of 55195647540 is 4574659155.

It is a super-3 number, since 3×55195647540³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55195647547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41814225 + ... + 41815544.

It is an arithmetic number, because the mean of its divisors is an integer number (3512450340).

Almost surely, 2^55195647540 is an apocalyptic number.

It is an amenable number.

55195647540 is an abundant number, since it is smaller than the sum of its proper divisors (113401968780).

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

55195647540 is a wasteful number, since it uses less digits than its factorization.

55195647540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83629792 (or 83629790 counting only the distinct ones).

The product of its (nonzero) digits is 3780000, while the sum is 51.

The spelling of 55195647540 in words is "fifty-five billion, one hundred ninety-five million, six hundred forty-seven thousand, five hundred forty".