61245010253 has 8 divisors (see below), whose sum is σ = 70000073280. Its totient is φ = 52491391200.

The previous prime is 61245010249. The next prime is 61245010261. The reversal of 61245010253 is 35201054216.

61245010253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61245010253 - 2² = 61245010249 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 (61245010223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268523 + ... + 441128.

It is an arithmetic number, because the mean of its divisors is an integer number (8750009160).

Almost surely, 2^61245010253 is an apocalyptic number.

It is an amenable number.

61245010253 is a deficient number, since it is larger than the sum of its proper divisors (8755063027).

61245010253 is a wasteful number, since it uses less digits than its factorization.

61245010253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721987.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 61245010253 its reverse (35201054216), we get a palindrome (96446064469).

The spelling of 61245010253 in words is "sixty-one billion, two hundred forty-five million, ten thousand, two hundred fifty-three".