48891031 has 16 divisors (see below), whose sum is σ = 61737984. Its totient is φ = 37724544.

The previous prime is 48890987. The next prime is 48891049. The reversal of 48891031 is 13019884.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48891031 is a prime.

It is a super-2 number, since 2×48891031² = 4780665824485922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48891131) 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, 6195 + ... + 11668.

It is an arithmetic number, because the mean of its divisors is an integer number (3858624).

Almost surely, 2^48891031 is an apocalyptic number.

48891031 is a deficient number, since it is larger than the sum of its proper divisors (12846953).

48891031 is a wasteful number, since it uses less digits than its factorization.

48891031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17910.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 48891031 is about 6992.2121678336. The cubic root of 48891031 is about 365.6591105683.

It can be divided in two parts, 488 and 91031, that added together give a palindrome (91519).

The spelling of 48891031 in words is "forty-eight million, eight hundred ninety-one thousand, thirty-one".