55627619 has 6 divisors (see below), whose sum is σ = 56628780. Its totient is φ = 54628460.

The previous prime is 55627589. The next prime is 55627633. The reversal of 55627619 is 91672655.

It is not a de Polignac number, because 55627619 - 2¹⁶ = 55562083 is a prime.

It is a super-2 number, since 2×55627619² = 6188863991218322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55627699) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56804 + ... + 57774.

It is an arithmetic number, because the mean of its divisors is an integer number (9438130).

Almost surely, 2^55627619 is an apocalyptic number.

55627619 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

55627619 is a deficient number, since it is larger than the sum of its proper divisors (1001161).

55627619 is an frugal number, since it uses more digits than its factorization.

55627619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001 (or 1030 counting only the distinct ones).

The product of its digits is 113400, while the sum is 41.

The square root of 55627619 is about 7458.3925211804. The cubic root of 55627619 is about 381.7363270023.

The spelling of 55627619 in words is "fifty-five million, six hundred twenty-seven thousand, six hundred nineteen".