55402141 has 4 divisors (see below), whose sum is σ = 55582912. Its totient is φ = 55221372.

The previous prime is 55402129. The next prime is 55402153. The reversal of 55402141 is 14120455.

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 an interprime number because it is at equal distance from previous prime (55402129) and next prime (55402153).

It is a cyclic number.

It is not a de Polignac number, because 55402141 - 2²¹ = 53304989 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 (55402741) 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, 89925 + ... + 90538.

It is an arithmetic number, because the mean of its divisors is an integer number (13895728).

Almost surely, 2^55402141 is an apocalyptic number.

It is an amenable number.

55402141 is a deficient number, since it is larger than the sum of its proper divisors (180771).

55402141 is a wasteful number, since it uses less digits than its factorization.

55402141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180770.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 55402141 is about 7443.2614491230. The cubic root of 55402141 is about 381.2198587297.

Adding to 55402141 its reverse (14120455), we get a palindrome (69522596).

The spelling of 55402141 in words is "fifty-five million, four hundred two thousand, one hundred forty-one".