61025231451 has 4 divisors (see below), whose sum is σ = 81366975272. Its totient is φ = 40683487632.

The previous prime is 61025231429. The next prime is 61025231461. The reversal of 61025231451 is 15413252016.

61025231451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 61025231451 - 2⁶ = 61025231387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61025231461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10170871906 + ... + 10170871911.

It is an arithmetic number, because the mean of its divisors is an integer number (20341743818).

Almost surely, 2^61025231451 is an apocalyptic number.

61025231451 is a deficient number, since it is larger than the sum of its proper divisors (20341743821).

61025231451 is a wasteful number, since it uses less digits than its factorization.

61025231451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20341743820.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 61025231451 its reverse (15413252016), we get a palindrome (76438483467).

The spelling of 61025231451 in words is "sixty-one billion, twenty-five million, two hundred thirty-one thousand, four hundred fifty-one".