4961551 has 16 divisors (see below), whose sum is σ = 5875200. Its totient is φ = 4102560.

The previous prime is 4961549. The next prime is 4961563. The reversal of 4961551 is 1551694.

It is not a de Polignac number, because 4961551 - 2¹ = 4961549 is a prime.

It is a Duffinian number.

4961551 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4961521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33225 + ... + 33373.

It is an arithmetic number, because the mean of its divisors is an integer number (367200).

Almost surely, 2^4961551 is an apocalyptic number.

4961551 is a deficient number, since it is larger than the sum of its proper divisors (913649).

4961551 is a wasteful number, since it uses less digits than its factorization.

4961551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294.

The product of its digits is 5400, while the sum is 31.

The square root of 4961551 is about 2227.4539276941. The cubic root of 4961551 is about 170.5581538970.

The spelling of 4961551 in words is "four million, nine hundred sixty-one thousand, five hundred fifty-one".