55651441 has 4 divisors (see below), whose sum is σ = 57155572. Its totient is φ = 54147312.

The previous prime is 55651439. The next prime is 55651451. The reversal of 55651441 is 14415655.

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

It can be written as a sum of positive squares in 2 ways, for example, as 44622400 + 11029041 = 6680^2 + 3321^2 .

It is a cyclic number.

It is not a de Polignac number, because 55651441 - 2¹ = 55651439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55651451) 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, 752010 + ... + 752083.

It is an arithmetic number, because the mean of its divisors is an integer number (14288893).

Almost surely, 2^55651441 is an apocalyptic number.

It is an amenable number.

55651441 is a deficient number, since it is larger than the sum of its proper divisors (1504131).

55651441 is a wasteful number, since it uses less digits than its factorization.

55651441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504130.

The product of its digits is 12000, while the sum is 31.

The square root of 55651441 is about 7459.9893431559. The cubic root of 55651441 is about 381.7908108789.

The spelling of 55651441 in words is "fifty-five million, six hundred fifty-one thousand, four hundred forty-one".