52920436 has 6 divisors (see below), whose sum is σ = 92610770. Its totient is φ = 26460216.

The previous prime is 52920431. The next prime is 52920451. The reversal of 52920436 is 63402925.

It can be written as a sum of positive squares in only one way, i.e., 38812900 + 14107536 = 6230^2 + 3756^2 .

It is a junction number, because it is equal to n+sod(n) for n = 52920398 and 52920407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52920431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6615051 + ... + 6615058.

Almost surely, 2^52920436 is an apocalyptic number.

It is an amenable number.

52920436 is a deficient number, since it is larger than the sum of its proper divisors (39690334).

52920436 is a wasteful number, since it uses less digits than its factorization.

52920436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13230113 (or 13230111 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 52920436 is about 7274.6433589558. The cubic root of 52920436 is about 375.4405158011.

The spelling of 52920436 in words is "fifty-two million, nine hundred twenty thousand, four hundred thirty-six".