48518421 has 16 divisors (see below), whose sum is σ = 76483200. Its totient is φ = 26768448.

The previous prime is 48518411. The next prime is 48518447. The reversal of 48518421 is 12481584.

It is not a de Polignac number, because 48518421 - 2¹¹ = 48516373 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48518411) 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, 39226 + ... + 40443.

It is an arithmetic number, because the mean of its divisors is an integer number (4780200).

Almost surely, 2^48518421 is an apocalyptic number.

It is an amenable number.

48518421 is a deficient number, since it is larger than the sum of its proper divisors (27964779).

48518421 is a wasteful number, since it uses less digits than its factorization.

48518421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79708.

The product of its digits is 10240, while the sum is 33.

The square root of 48518421 is about 6965.5165637589. The cubic root of 48518421 is about 364.7278160958.

It can be divided in two parts, 485184 and 21, that multiplied together give a square (10188864 = 3192²).

The spelling of 48518421 in words is "forty-eight million, five hundred eighteen thousand, four hundred twenty-one".