5540861 has 16 divisors (see below), whose sum is σ = 6303744. Its totient is φ = 4840704.

The previous prime is 5540849. The next prime is 5540869. The reversal of 5540861 is 1680455.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5540861 is a prime.

It is a super-2 number, since 2×5540861² = 61402281242642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5540869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14276 + ... + 14658.

It is an arithmetic number, because the mean of its divisors is an integer number (393984).

Almost surely, 2^5540861 is an apocalyptic number.

It is an amenable number.

5540861 is a deficient number, since it is larger than the sum of its proper divisors (762883).

5540861 is a wasteful number, since it uses less digits than its factorization.

5540861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 5540861 is about 2353.9033540059. The cubic root of 5540861 is about 176.9534706981.

The spelling of 5540861 in words is "five million, five hundred forty thousand, eight hundred sixty-one".