55432253132540 has 48 divisors (see below), whose sum is σ = 117717042471840. Its totient is φ = 21923514455040.

The previous prime is 55432253132533. The next prime is 55432253132671. The reversal of 55432253132540 is 4523135223455.

It is a junction number, because it is equal to n+sod(n) for n = 55432253132491 and 55432253132500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259066400 + ... + 259280280.

It is an arithmetic number, because the mean of its divisors is an integer number (2452438384830).

Almost surely, 2^{55432253132540} is an apocalyptic number.

It is an amenable number.

55432253132540 is an abundant number, since it is smaller than the sum of its proper divisors (62284789339300).

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

55432253132540 is a wasteful number, since it uses less digits than its factorization.

55432253132540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359582 (or 359580 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 44.

Adding to 55432253132540 its reverse (4523135223455), we get a palindrome (59955388355995).

The spelling of 55432253132540 in words is "fifty-five trillion, four hundred thirty-two billion, two hundred fifty-three million, one hundred thirty-two thousand, five hundred forty".