48157581 has 8 divisors (see below), whose sum is σ = 64316320. Its totient is φ = 32051952.

The previous prime is 48157579. The next prime is 48157591. The reversal of 48157581 is 18575184.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 48157581 - 2¹ = 48157579 is a prime.

It is a super-2 number, since 2×48157581² = 4638305215543122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48157541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11110 + ... + 14823.

It is an arithmetic number, because the mean of its divisors is an integer number (8039540).

Almost surely, 2^48157581 is an apocalyptic number.

It is an amenable number.

48157581 is a deficient number, since it is larger than the sum of its proper divisors (16158739).

48157581 is a wasteful number, since it uses less digits than its factorization.

48157581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26555.

The product of its digits is 44800, while the sum is 39.

The square root of 48157581 is about 6939.5663409179. The cubic root of 48157581 is about 363.8213837066.

The spelling of 48157581 in words is "forty-eight million, one hundred fifty-seven thousand, five hundred eighty-one".