748551 has 4 divisors (see below), whose sum is σ = 998072. Its totient is φ = 499032.

The previous prime is 748541. The next prime is 748567. The reversal of 748551 is 155847.

748551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 155847 = 3 ⋅51949.

It is not a de Polignac number, because 748551 - 2⁶ = 748487 is a prime.

It is a D-number.

It is a Duffinian number.

748551 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (748541) 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, 124756 + ... + 124761.

It is an arithmetic number, because the mean of its divisors is an integer number (249518).

2⁷⁴⁸⁵⁵¹ is an apocalyptic number.

748551 is a deficient number, since it is larger than the sum of its proper divisors (249521).

748551 is a wasteful number, since it uses less digits than its factorization.

748551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249520.

The product of its digits is 5600, while the sum is 30.

The square root of 748551 is about 865.1884187852. The cubic root of 748551 is about 90.7974806368.

Subtracting from 748551 its reverse (155847), we obtain a cube (592704 = 84³).

The spelling of 748551 in words is "seven hundred forty-eight thousand, five hundred fifty-one".