55521454 has 4 divisors (see below), whose sum is σ = 83282184. Its totient is φ = 27760726.

The previous prime is 55521443. The next prime is 55521463. The reversal of 55521454 is 45412555.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45412555 = 5 ⋅9082511.

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, 13880362 + ... + 13880365.

It is an arithmetic number, because the mean of its divisors is an integer number (20820546).

Almost surely, 2^55521454 is an apocalyptic number.

55521454 is a deficient number, since it is larger than the sum of its proper divisors (27760730).

55521454 is a wasteful number, since it uses less digits than its factorization.

55521454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27760729.

The product of its digits is 20000, while the sum is 31.

The square root of 55521454 is about 7451.2719719522. The cubic root of 55521454 is about 381.4933251318.

The spelling of 55521454 in words is "fifty-five million, five hundred twenty-one thousand, four hundred fifty-four".