61442502 has 32 divisors (see below), whose sum is σ = 134334720. Its totient is φ = 18580320.

The previous prime is 61442483. The next prime is 61442519. The reversal of 61442502 is 20524416.

61442502 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60148 + ... + 61160.

It is an arithmetic number, because the mean of its divisors is an integer number (4197960).

Almost surely, 2^61442502 is an apocalyptic number.

61442502 is an abundant number, since it is smaller than the sum of its proper divisors (72892218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61442502 is a wasteful number, since it uses less digits than its factorization.

61442502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1948.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 61442502 is about 7838.5267748474. The cubic root of 61442502 is about 394.5992881245.

Adding to 61442502 its reverse (20524416), we get a palindrome (81966918).

It can be divided in two parts, 6144 and 2502, that added together give a triangular number (8646 = T₁₃₁).

The spelling of 61442502 in words is "sixty-one million, four hundred forty-two thousand, five hundred two".