55613469 has 4 divisors (see below), whose sum is σ = 74151296. Its totient is φ = 37075644.

The previous prime is 55613447. The next prime is 55613489. The reversal of 55613469 is 96431655.

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 55613469 - 2¹² = 55609373 is a prime.

It is a super-2 number, since 2×55613469² = 6185715868427922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55613419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9268909 + ... + 9268914.

It is an arithmetic number, because the mean of its divisors is an integer number (18537824).

Almost surely, 2^55613469 is an apocalyptic number.

It is an amenable number.

55613469 is a deficient number, since it is larger than the sum of its proper divisors (18537827).

55613469 is a wasteful number, since it uses less digits than its factorization.

55613469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18537826.

The product of its digits is 97200, while the sum is 39.

The square root of 55613469 is about 7457.4438650251. The cubic root of 55613469 is about 381.7039568285.

The spelling of 55613469 in words is "fifty-five million, six hundred thirteen thousand, four hundred sixty-nine".