53772387 has 8 divisors (see below), whose sum is σ = 72057600. Its totient is φ = 35667720.

The previous prime is 53772319. The next prime is 53772401. The reversal of 53772387 is 78327735.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53772387 - 2¹⁰ = 53771363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53772307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44439 + ... + 45632.

It is an arithmetic number, because the mean of its divisors is an integer number (9007200).

Almost surely, 2^53772387 is an apocalyptic number.

53772387 is a deficient number, since it is larger than the sum of its proper divisors (18285213).

53772387 is a wasteful number, since it uses less digits than its factorization.

53772387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90273.

The product of its digits is 246960, while the sum is 42.

The square root of 53772387 is about 7332.9657710915. The cubic root of 53772387 is about 377.4445033398. Note that the first 3 decimals are identical.

The spelling of 53772387 in words is "fifty-three million, seven hundred seventy-two thousand, three hundred eighty-seven".