53771004 has 72 divisors (see below), whose sum is σ = 156024960. Its totient is φ = 15295392.

The previous prime is 53770979. The next prime is 53771009. The reversal of 53771004 is 40017735.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53771009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95227 + ... + 95789.

Almost surely, 2^53771004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53771004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78012480).

53771004 is an abundant number, since it is smaller than the sum of its proper divisors (102253956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53771004 is a wasteful number, since it uses less digits than its factorization.

53771004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959 (or 954 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 53771004 is about 7332.8714703041. The cubic root of 53771004 is about 377.4412674149.

Adding to 53771004 its reverse (40017735), we get a palindrome (93788739).

The spelling of 53771004 in words is "fifty-three million, seven hundred seventy-one thousand, four".