61054751 has 4 divisors (see below), whose sum is σ = 61094352. Its totient is φ = 61015152.

The previous prime is 61054723. The next prime is 61054753. The reversal of 61054751 is 15745016.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61054751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61054753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17390 + ... + 20603.

It is an arithmetic number, because the mean of its divisors is an integer number (15273588).

Almost surely, 2^61054751 is an apocalyptic number.

61054751 is a deficient number, since it is larger than the sum of its proper divisors (39601).

61054751 is a wasteful number, since it uses less digits than its factorization.

61054751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39600.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 61054751 is about 7813.7539633649. The cubic root of 61054751 is about 393.7674574942.

Adding to 61054751 its reverse (15745016), we get a palindrome (76799767).

The spelling of 61054751 in words is "sixty-one million, fifty-four thousand, seven hundred fifty-one".