48661538 has 4 divisors (see below), whose sum is σ = 72992310. Its totient is φ = 24330768.

The previous prime is 48661523. The next prime is 48661553. The reversal of 48661538 is 83516684.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (48661523) and next prime (48661553).

It can be written as a sum of positive squares in only one way, i.e., 48622729 + 38809 = 6973^2 + 197^2 .

It is a junction number, because it is equal to n+sod(n) for n = 48661495 and 48661504.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12165383 + ... + 12165386.

Almost surely, 2^48661538 is an apocalyptic number.

48661538 is a deficient number, since it is larger than the sum of its proper divisors (24330772).

48661538 is a wasteful number, since it uses less digits than its factorization.

48661538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24330771.

The product of its digits is 138240, while the sum is 41.

The square root of 48661538 is about 6975.7822500419. The cubic root of 48661538 is about 365.0860821549.

The spelling of 48661538 in words is "forty-eight million, six hundred sixty-one thousand, five hundred thirty-eight".