55571763 has 12 divisors (see below), whose sum is σ = 80234520. Its totient is φ = 34197696.

The previous prime is 55571741. The next prime is 55571773. The reversal of 55571763 is 36717555.

It is a happy number.

It is not a de Polignac number, because 55571763 - 2⁶ = 55571699 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (55571723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54298 + ... + 55311.

It is an arithmetic number, because the mean of its divisors is an integer number (6686210).

Almost surely, 2^55571763 is an apocalyptic number.

55571763 is a deficient number, since it is larger than the sum of its proper divisors (24662757).

55571763 is a wasteful number, since it uses less digits than its factorization.

55571763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109638 (or 109625 counting only the distinct ones).

The product of its digits is 110250, while the sum is 39.

The square root of 55571763 is about 7454.6470741411. The cubic root of 55571763 is about 381.6085163617.

The spelling of 55571763 in words is "fifty-five million, five hundred seventy-one thousand, seven hundred sixty-three".