61252053471 has 40 divisors (see below), whose sum is σ = 105895173120. Its totient is φ = 34558095312.

The previous prime is 61252053433. The next prime is 61252053481. The reversal of 61252053471 is 17435025216.

61252053471 is a `hidden beast` number, since 6 + 1 + 2 + 52 + 0 + 534 + 71 = 666.

It is not a de Polignac number, because 61252053471 - 2³⁰ = 60178311647 is a prime.

It is a super-3 number, since 3×61252053471³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61252053431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 638931 + ... + 728516.

It is an arithmetic number, because the mean of its divisors is an integer number (2647379328).

Almost surely, 2^61252053471 is an apocalyptic number.

61252053471 is a deficient number, since it is larger than the sum of its proper divisors (44643119649).

61252053471 is a wasteful number, since it uses less digits than its factorization.

61252053471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367545 (or 1367536 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

Adding to 61252053471 its reverse (17435025216), we get a palindrome (78687078687).

The spelling of 61252053471 in words is "sixty-one billion, two hundred fifty-two million, fifty-three thousand, four hundred seventy-one".