7040551 has 8 divisors (see below), whose sum is σ = 8130080. Its totient is φ = 5971968.

The previous prime is 7040549. The next prime is 7040557. The reversal of 7040551 is 1550407.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 13-Lehmer number, since φ(7040551) divides (7040551-1)¹³.

It is a cyclic number.

It is not a de Polignac number, because 7040551 - 2¹ = 7040549 is a prime.

7040551 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7040557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4506 + ... + 5863.

It is an arithmetic number, because the mean of its divisors is an integer number (1016260).

Almost surely, 2^7040551 is an apocalyptic number.

7040551 is a deficient number, since it is larger than the sum of its proper divisors (1089529).

7040551 is a wasteful number, since it uses less digits than its factorization.

7040551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10473.

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 7040551 is about 2653.4036632220. The cubic root of 7040551 is about 191.6617942891.

Adding to 7040551 its reverse (1550407), we get a palindrome (8590958).

The spelling of 7040551 in words is "seven million, forty thousand, five hundred fifty-one".