55741421 has 4 divisors (see below), whose sum is σ = 58675200. Its totient is φ = 52807644.

The previous prime is 55741409. The next prime is 55741423. The reversal of 55741421 is 12414755.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55741421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55741423) 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, 1466861 + ... + 1466898.

It is an arithmetic number, because the mean of its divisors is an integer number (14668800).

Almost surely, 2^55741421 is an apocalyptic number.

It is an amenable number.

55741421 is a deficient number, since it is larger than the sum of its proper divisors (2933779).

55741421 is a wasteful number, since it uses less digits than its factorization.

55741421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2933778.

The product of its digits is 5600, while the sum is 29.

The square root of 55741421 is about 7466.0177470992. The cubic root of 55741421 is about 381.9964661643.

The spelling of 55741421 in words is "fifty-five million, seven hundred forty-one thousand, four hundred twenty-one".