5515401043 has 4 divisors (see below), whose sum is σ = 5523180880. Its totient is φ = 5507621208.

The previous prime is 5515401029. The next prime is 5515401061. The reversal of 5515401043 is 3401045155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3401045155 = 5 ⋅680209031.

It is a cyclic number.

It is not a de Polignac number, because 5515401043 - 2⁵ = 5515401011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5515401943) 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, 3888855 + ... + 3890272.

It is an arithmetic number, because the mean of its divisors is an integer number (1380795220).

Almost surely, 2^5515401043 is an apocalyptic number.

5515401043 is a deficient number, since it is larger than the sum of its proper divisors (7779837).

5515401043 is an equidigital number, since it uses as much as digits as its factorization.

5515401043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7779836.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 5515401043 is about 74265.7460946835. The cubic root of 5515401043 is about 1766.8202396501.

Adding to 5515401043 its reverse (3401045155), we get a palindrome (8916446198).

The spelling of 5515401043 in words is "five billion, five hundred fifteen million, four hundred one thousand, forty-three".