53787029 has 6 divisors (see below), whose sum is σ = 54058914. Its totient is φ = 53516400.

The previous prime is 53787017. The next prime is 53787037. The reversal of 53787029 is 92078735.

It can be written as a sum of positive squares in 3 ways, for example, as 2992900 + 50794129 = 1730^2 + 7127^2 .

It is not a de Polignac number, because 53787029 - 2⁸ = 53786773 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 (53787049) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76379 + ... + 77079.

It is an arithmetic number, because the mean of its divisors is an integer number (9009819).

Almost surely, 2^53787029 is an apocalyptic number.

It is an amenable number.

53787029 is a deficient number, since it is larger than the sum of its proper divisors (271885).

53787029 is an frugal number, since it uses more digits than its factorization.

53787029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255 (or 978 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 53787029 is about 7333.9640713600. The cubic root of 53787029 is about 377.4787590931.

The spelling of 53787029 in words is "fifty-three million, seven hundred eighty-seven thousand, twenty-nine".