55501771 has 8 divisors (see below), whose sum is σ = 59883824. Its totient is φ = 51135840.

The previous prime is 55501769. The next prime is 55501781. The reversal of 55501771 is 17710555.

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

It is a cyclic number.

It is not a de Polignac number, because 55501771 - 2¹ = 55501769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55501781) 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, 3685 + ... + 11161.

It is an arithmetic number, because the mean of its divisors is an integer number (7485478).

Almost surely, 2^55501771 is an apocalyptic number.

55501771 is a deficient number, since it is larger than the sum of its proper divisors (4382053).

55501771 is a wasteful number, since it uses less digits than its factorization.

55501771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8061.

The product of its (nonzero) digits is 6125, while the sum is 31.

The square root of 55501771 is about 7449.9510736648. The cubic root of 55501771 is about 381.4482385327.

The spelling of 55501771 in words is "fifty-five million, five hundred one thousand, seven hundred seventy-one".