61552442 has 16 divisors (see below), whose sum is σ = 109157760. Its totient is φ = 25469808.

The previous prime is 61552441. The next prime is 61552459. The reversal of 61552442 is 24425516.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (61552441) 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, 75398 + ... + 76209.

It is an arithmetic number, because the mean of its divisors is an integer number (6822360).

Almost surely, 2^61552442 is an apocalyptic number.

61552442 is a deficient number, since it is larger than the sum of its proper divisors (47605318).

61552442 is a wasteful number, since it uses less digits than its factorization.

61552442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151645.

The product of its digits is 9600, while the sum is 29.

The square root of 61552442 is about 7845.5364380009. The cubic root of 61552442 is about 394.8345020518.

Adding to 61552442 its reverse (24425516), we get a palindrome (85977958).

The spelling of 61552442 in words is "sixty-one million, five hundred fifty-two thousand, four hundred forty-two".