52136063642 has 48 divisors (see below), whose sum is σ = 89256398040. Its totient is φ = 22794460416.

The previous prime is 52136063621. The next prime is 52136063653. The reversal of 52136063642 is 24636063125.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 1018081 + 52135045561 = 1009^2 + 228331^2 .

It is a junction number, because it is equal to n+sod(n) for n = 52136063596 and 52136063605.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 469328 + ... + 569684.

Almost surely, 2^52136063642 is an apocalyptic number.

52136063642 is a deficient number, since it is larger than the sum of its proper divisors (37120334398).

52136063642 is a wasteful number, since it uses less digits than its factorization.

52136063642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100467 (or 100454 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 52136063642 in words is "fifty-two billion, one hundred thirty-six million, sixty-three thousand, six hundred forty-two".