55557974 has 4 divisors (see below), whose sum is σ = 83336964. Its totient is φ = 27778986.

The previous prime is 55557967. The next prime is 55558001. The reversal of 55557974 is 47975555.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13889492 + ... + 13889495.

It is an arithmetic number, because the mean of its divisors is an integer number (20834241).

Almost surely, 2^55557974 is an apocalyptic number.

55557974 is a deficient number, since it is larger than the sum of its proper divisors (27778990).

55557974 is a wasteful number, since it uses less digits than its factorization.

55557974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27778989.

The product of its digits is 1102500, while the sum is 47.

The square root of 55557974 is about 7453.7221574191. The cubic root of 55557974 is about 381.5769509597.

The spelling of 55557974 in words is "fifty-five million, five hundred fifty-seven thousand, nine hundred seventy-four".