48591931 has 2 divisors, whose sum is σ = 48591932. Its totient is φ = 48591930.

The previous prime is 48591871. The next prime is 48591941. The reversal of 48591931 is 13919584.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 48591931 - 2¹⁵ = 48559163 is a prime.

It is a super-2 number, since 2×48591931² = 4722351516617522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (48591941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24295965 + 24295966.

It is an arithmetic number, because the mean of its divisors is an integer number (24295966).

Almost surely, 2^48591931 is an apocalyptic number.

48591931 is a deficient number, since it is larger than the sum of its proper divisors (1).

48591931 is an equidigital number, since it uses as much as digits as its factorization.

48591931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 40.

The square root of 48591931 is about 6970.7912750275. The cubic root of 48591931 is about 364.9119222018.

It can be divided in two parts, 485 and 91931, that added together give a square (92416 = 304²).

The spelling of 48591931 in words is "forty-eight million, five hundred ninety-one thousand, nine hundred thirty-one".