48831557 has 4 divisors (see below), whose sum is σ = 48845760. Its totient is φ = 48817356.

The previous prime is 48831529. The next prime is 48831569. The reversal of 48831557 is 75513884.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 48831557 - 2⁶ = 48831493 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 (48830557) 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, 1658 + ... + 10020.

It is an arithmetic number, because the mean of its divisors is an integer number (12211440).

Almost surely, 2^48831557 is an apocalyptic number.

It is an amenable number.

48831557 is a deficient number, since it is larger than the sum of its proper divisors (14203).

48831557 is an equidigital number, since it uses as much as digits as its factorization.

48831557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14202.

The product of its digits is 134400, while the sum is 41.

The square root of 48831557 is about 6987.9579993014. The cubic root of 48831557 is about 365.5107804713.

The spelling of 48831557 in words is "forty-eight million, eight hundred thirty-one thousand, five hundred fifty-seven".