61311052 has 24 divisors (see below), whose sum is σ = 117269712. Its totient is φ = 27816000.

The previous prime is 61311037. The next prime is 61311067. The reversal of 61311052 is 25011316.

It is an interprime number because it is at equal distance from previous prime (61311037) and next prime (61311067).

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, 31302 + ... + 33202.

It is an arithmetic number, because the mean of its divisors is an integer number (4886238).

Almost surely, 2^61311052 is an apocalyptic number.

It is an amenable number.

61311052 is a deficient number, since it is larger than the sum of its proper divisors (55958660).

61311052 is a wasteful number, since it uses less digits than its factorization.

61311052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2649 (or 2647 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 61311052 is about 7830.1374189729. The cubic root of 61311052 is about 394.3176854932.

Adding to 61311052 its reverse (25011316), we get a palindrome (86322368).

It can be divided in two parts, 61 and 311052, that added together give a palindrome (311113).

The spelling of 61311052 in words is "sixty-one million, three hundred eleven thousand, fifty-two".