7042551 has 8 divisors (see below), whose sum is σ = 9402624. Its totient is φ = 4688760.

The previous prime is 7042523. The next prime is 7042579. The reversal of 7042551 is 1552407.

It is an interprime number because it is at equal distance from previous prime (7042523) and next prime (7042579).

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

It is not a de Polignac number, because 7042551 - 2⁷ = 7042423 is a prime.

7042551 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7042501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2740 + ... + 4646.

It is an arithmetic number, because the mean of its divisors is an integer number (1175328).

Almost surely, 2^7042551 is an apocalyptic number.

7042551 is a deficient number, since it is larger than the sum of its proper divisors (2360073).

7042551 is a wasteful number, since it uses less digits than its factorization.

7042551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3141.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 7042551 is about 2653.7805108938. The cubic root of 7042551 is about 191.6799409416.

Adding to 7042551 its reverse (1552407), we get a palindrome (8594958).

The spelling of 7042551 in words is "seven million, forty-two thousand, five hundred fifty-one".