55963543 has 4 divisors (see below), whose sum is σ = 56477080. Its totient is φ = 55450008.

The previous prime is 55963529. The next prime is 55963547. The reversal of 55963543 is 34536955.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55963543 - 2¹³ = 55955351 is a prime.

It is a super-2 number, since 2×55963543² = 6263836290225698, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55963496 and 55963505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55963547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256605 + ... + 256822.

It is an arithmetic number, because the mean of its divisors is an integer number (14119270).

Almost surely, 2^55963543 is an apocalyptic number.

55963543 is a deficient number, since it is larger than the sum of its proper divisors (513537).

55963543 is a wasteful number, since it uses less digits than its factorization.

55963543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513536.

The product of its digits is 243000, while the sum is 40.

The square root of 55963543 is about 7480.8784911934. The cubic root of 55963543 is about 382.5031950407.

The spelling of 55963543 in words is "fifty-five million, nine hundred sixty-three thousand, five hundred forty-three".