61531352 has 8 divisors (see below), whose sum is σ = 115371300. Its totient is φ = 30765672.

The previous prime is 61531297. The next prime is 61531391. The reversal of 61531352 is 25313516.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×61531352² = 7572214557895808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3845702 + ... + 3845717.

Almost surely, 2^61531352 is an apocalyptic number.

It is an amenable number.

61531352 is a deficient number, since it is larger than the sum of its proper divisors (53839948).

61531352 is a wasteful number, since it uses less digits than its factorization.

61531352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7691425 (or 7691421 counting only the distinct ones).

The product of its digits is 2700, while the sum is 26.

The square root of 61531352 is about 7844.1922464968. The cubic root of 61531352 is about 394.7894022388.

Adding to 61531352 its reverse (25313516), we get a palindrome (86844868).

The spelling of 61531352 in words is "sixty-one million, five hundred thirty-one thousand, three hundred fifty-two".