4945551 has 16 divisors (see below), whose sum is σ = 7152096. Its totient is φ = 3021696.

The previous prime is 4945541. The next prime is 4945553. The reversal of 4945551 is 1555494.

It is not a de Polignac number, because 4945551 - 2⁵ = 4945519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4945553) 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, 6381 + ... + 7113.

It is an arithmetic number, because the mean of its divisors is an integer number (447006).

Almost surely, 2^4945551 is an apocalyptic number.

4945551 is a deficient number, since it is larger than the sum of its proper divisors (2206545).

4945551 is a wasteful number, since it uses less digits than its factorization.

4945551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922.

The product of its digits is 18000, while the sum is 33.

The square root of 4945551 is about 2223.8594829710. The cubic root of 4945551 is about 170.3746179324.

The spelling of 4945551 in words is "four million, nine hundred forty-five thousand, five hundred fifty-one".