61252541204057 has 4 divisors (see below), whose sum is σ = 70002904233216. Its totient is φ = 52502178174900.

The previous prime is 61252541204011. The next prime is 61252541204149. The reversal of 61252541204057 is 75040214525216.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61252541204057 - 2¹⁰ = 61252541203033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61252541203999 and 61252541204017.

It is not an unprimeable number, because it can be changed into a prime (61252541206057) 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, 4375181514569 + ... + 4375181514582.

It is an arithmetic number, because the mean of its divisors is an integer number (17500726058304).

Almost surely, 2^{61252541204057} is an apocalyptic number.

It is an amenable number.

61252541204057 is a deficient number, since it is larger than the sum of its proper divisors (8750363029159).

61252541204057 is an equidigital number, since it uses as much as digits as its factorization.

61252541204057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8750363029158.

The product of its (nonzero) digits is 672000, while the sum is 44.

The spelling of 61252541204057 in words is "sixty-one trillion, two hundred fifty-two billion, five hundred forty-one million, two hundred four thousand, fifty-seven".