55619654 has 8 divisors (see below), whose sum is σ = 84843720. Its totient is φ = 27338416.

The previous prime is 55619653. The next prime is 55619693. The reversal of 55619654 is 45691655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×55619654² = 6187091822159432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55619653) 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, 235559 + ... + 235794.

It is an arithmetic number, because the mean of its divisors is an integer number (10605465).

Almost surely, 2^55619654 is an apocalyptic number.

55619654 is a deficient number, since it is larger than the sum of its proper divisors (29224066).

55619654 is a wasteful number, since it uses less digits than its factorization.

55619654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471414.

The product of its digits is 162000, while the sum is 41.

The square root of 55619654 is about 7457.8585398223. The cubic root of 55619654 is about 381.7181065869.

The spelling of 55619654 in words is "fifty-five million, six hundred nineteen thousand, six hundred fifty-four".