61488538 has 16 divisors (see below), whose sum is σ = 94666176. Its totient is φ = 29937600.

The previous prime is 61488527. The next prime is 61488547. The reversal of 61488538 is 83588416.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 61488494 and 61488503.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33595 + ... + 35377.

It is an arithmetic number, because the mean of its divisors is an integer number (5916636).

Almost surely, 2^61488538 is an apocalyptic number.

61488538 is a deficient number, since it is larger than the sum of its proper divisors (33177638).

61488538 is a wasteful number, since it uses less digits than its factorization.

61488538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2229.

The product of its digits is 184320, while the sum is 43.

The square root of 61488538 is about 7841.4627461973. The cubic root of 61488538 is about 394.6978151333.

It can be divided in two parts, 61488 and 538, that added together give a palindrome (62026).

The spelling of 61488538 in words is "sixty-one million, four hundred eighty-eight thousand, five hundred thirty-eight".