55457233481 has 8 divisors (see below), whose sum is σ = 59725029000. Its totient is φ = 51189702912.

The previous prime is 55457233457. The next prime is 55457233483. The reversal of 55457233481 is 18433275455.

It can be written as a sum of positive squares in 4 ways, for example, as 18202057225 + 37255176256 = 134915^2 + 193016^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55457233481 is a prime.

It is a super-2 number, since 2×55457233481² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55457233483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 679631 + ... + 756843.

It is an arithmetic number, because the mean of its divisors is an integer number (7465628625).

Almost surely, 2^55457233481 is an apocalyptic number.

It is an amenable number.

55457233481 is a deficient number, since it is larger than the sum of its proper divisors (4267795519).

55457233481 is a wasteful number, since it uses less digits than its factorization.

55457233481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132475.

The product of its digits is 2016000, while the sum is 47.

The spelling of 55457233481 in words is "fifty-five billion, four hundred fifty-seven million, two hundred thirty-three thousand, four hundred eighty-one".