61453552 has 30 divisors (see below), whose sum is σ = 123340568. Its totient is φ = 29660736.

The previous prime is 61453549. The next prime is 61453571. The reversal of 61453552 is 25535416.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11173 + ... + 15739.

Almost surely, 2^61453552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61453552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61670284).

61453552 is an abundant number, since it is smaller than the sum of its proper divisors (61887016).

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

61453552 is a wasteful number, since it uses less digits than its factorization.

61453552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4633 (or 4598 counting only the distinct ones).

The product of its digits is 18000, while the sum is 31.

The square root of 61453552 is about 7839.2315949971. The cubic root of 61453552 is about 394.6229420049.

Adding to 61453552 its reverse (25535416), we get a palindrome (86988968).

It can be divided in two parts, 61 and 453552, that multiplied together give a palindrome (27666672).

The spelling of 61453552 in words is "sixty-one million, four hundred fifty-three thousand, five hundred fifty-two".