55698505 has 8 divisors (see below), whose sum is σ = 68644872. Its totient is φ = 43354368.

The previous prime is 55698497. The next prime is 55698509. The reversal of 55698505 is 50589655.

It can be written as a sum of positive squares in 4 ways, for example, as 2350089 + 53348416 = 1533^2 + 7304^2 .

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 55698505 - 2³ = 55698497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55698509) 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, 150352 + ... + 150721.

It is an arithmetic number, because the mean of its divisors is an integer number (8580609).

Almost surely, 2^55698505 is an apocalyptic number.

It is an amenable number.

55698505 is a deficient number, since it is larger than the sum of its proper divisors (12946367).

55698505 is a wasteful number, since it uses less digits than its factorization.

55698505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301115.

The product of its (nonzero) digits is 270000, while the sum is 43.

The square root of 55698505 is about 7463.1431046175. The cubic root of 55698505 is about 381.8984064145.

The spelling of 55698505 in words is "fifty-five million, six hundred ninety-eight thousand, five hundred five".