5400105621 has 4 divisors (see below), whose sum is σ = 7200140832. Its totient is φ = 3600070412.

The previous prime is 5400105617. The next prime is 5400105647. The reversal of 5400105621 is 1265010045.

5400105621 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 5400105621 - 2² = 5400105617 is a prime.

It is a super-2 number, since 2×5400105621² = 58322281435911591282, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5400105591 and 5400105600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5400105661) 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, 900017601 + ... + 900017606.

It is an arithmetic number, because the mean of its divisors is an integer number (1800035208).

Almost surely, 2^5400105621 is an apocalyptic number.

It is an amenable number.

5400105621 is a deficient number, since it is larger than the sum of its proper divisors (1800035211).

5400105621 is a wasteful number, since it uses less digits than its factorization.

5400105621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800035210.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 5400105621 is about 73485.4109398593. The cubic root of 5400105621 is about 1754.4220812856.

Adding to 5400105621 its reverse (1265010045), we get a palindrome (6665115666).

The spelling of 5400105621 in words is "five billion, four hundred million, one hundred five thousand, six hundred twenty-one".