4971551 has 4 divisors (see below), whose sum is σ = 5353992. Its totient is φ = 4589112.

The previous prime is 4971529. The next prime is 4971553. The reversal of 4971551 is 1551794.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4971551 - 2²² = 777247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4971553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191201 + ... + 191226.

It is an arithmetic number, because the mean of its divisors is an integer number (1338498).

Almost surely, 2^4971551 is an apocalyptic number.

4971551 is a deficient number, since it is larger than the sum of its proper divisors (382441).

4971551 is a wasteful number, since it uses less digits than its factorization.

4971551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382440.

The product of its digits is 6300, while the sum is 32.

The square root of 4971551 is about 2229.6975131170. The cubic root of 4971551 is about 170.6726635839.

It can be divided in two parts, 497 and 1551, that added together give a 11-th power (2048 = 2¹¹).

The spelling of 4971551 in words is "four million, nine hundred seventy-one thousand, five hundred fifty-one".