55489701 has 4 divisors (see below), whose sum is σ = 73986272. Its totient is φ = 36993132.

The previous prime is 55489699. The next prime is 55489727. The reversal of 55489701 is 10798455.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 55489701 - 2¹ = 55489699 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55489701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55489741) 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, 9248281 + ... + 9248286.

It is an arithmetic number, because the mean of its divisors is an integer number (18496568).

Almost surely, 2^55489701 is an apocalyptic number.

It is an amenable number.

55489701 is a deficient number, since it is larger than the sum of its proper divisors (18496571).

55489701 is a wasteful number, since it uses less digits than its factorization.

55489701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18496570.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 55489701 is about 7449.1409571843. The cubic root of 55489701 is about 381.4205852767.

The spelling of 55489701 in words is "fifty-five million, four hundred eighty-nine thousand, seven hundred one".