55590974 has 4 divisors (see below), whose sum is σ = 83386464. Its totient is φ = 27795486.

The previous prime is 55590961. The next prime is 55591007. The reversal of 55590974 is 47909555.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47909555 = 5 ⋅9581911.

It is a Curzon number.

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, 13897742 + ... + 13897745.

It is an arithmetic number, because the mean of its divisors is an integer number (20846616).

Almost surely, 2^55590974 is an apocalyptic number.

55590974 is a deficient number, since it is larger than the sum of its proper divisors (27795490).

55590974 is a wasteful number, since it uses less digits than its factorization.

55590974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27795489.

The product of its (nonzero) digits is 283500, while the sum is 44.

The square root of 55590974 is about 7455.9354879183. The cubic root of 55590974 is about 381.6524849541.

The spelling of 55590974 in words is "fifty-five million, five hundred ninety thousand, nine hundred seventy-four".