5401442551 has 4 divisors (see below), whose sum is σ = 5404154752. Its totient is φ = 5398730352.

The previous prime is 5401442537. The next prime is 5401442587. The reversal of 5401442551 is 1552441045.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 5401442551 - 2¹¹ = 5401440503 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 (5401442051) 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, 1353111 + ... + 1357096.

It is an arithmetic number, because the mean of its divisors is an integer number (1351038688).

Almost surely, 2^5401442551 is an apocalyptic number.

5401442551 is a deficient number, since it is larger than the sum of its proper divisors (2712201).

5401442551 is a wasteful number, since it uses less digits than its factorization.

5401442551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2712200.

The product of its (nonzero) digits is 16000, while the sum is 31.

The square root of 5401442551 is about 73494.5069443969. The cubic root of 5401442551 is about 1754.5668528968.

Adding to 5401442551 its reverse (1552441045), we get a palindrome (6953883596).

The spelling of 5401442551 in words is "five billion, four hundred one million, four hundred forty-two thousand, five hundred fifty-one".