55538629 has 8 divisors (see below), whose sum is σ = 58398912. Its totient is φ = 52715520.

The previous prime is 55538627. The next prime is 55538633. The reversal of 55538629 is 92683555.

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 55538629 - 2¹ = 55538627 is a prime.

It is a super-2 number, since 2×55538629² = 6169078622399282, 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 (55538621) 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, 6204 + ... + 12229.

It is an arithmetic number, because the mean of its divisors is an integer number (7299864).

Almost surely, 2^55538629 is an apocalyptic number.

It is an amenable number.

55538629 is a deficient number, since it is larger than the sum of its proper divisors (2860283).

55538629 is a wasteful number, since it uses less digits than its factorization.

55538629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18587.

The product of its digits is 324000, while the sum is 43.

The square root of 55538629 is about 7452.4243706327. The cubic root of 55538629 is about 381.5326581097.

The spelling of 55538629 in words is "fifty-five million, five hundred thirty-eight thousand, six hundred twenty-nine".