553111240 has 32 divisors (see below), whose sum is σ = 1357637760. Its totient is φ = 201131200.

The previous prime is 553111231. The next prime is 553111241. The reversal of 553111240 is 42111355.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (553111241) 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, 628096 + ... + 628975.

It is an arithmetic number, because the mean of its divisors is an integer number (42426180).

Almost surely, 2^553111240 is an apocalyptic number.

It is an amenable number.

553111240 is an abundant number, since it is smaller than the sum of its proper divisors (804526520).

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

553111240 is a wasteful number, since it uses less digits than its factorization.

553111240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257093 (or 1257089 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 553111240 is about 23518.3171166646. The cubic root of 553111240 is about 820.8632788225.

Adding to 553111240 its reverse (42111355), we get a palindrome (595222595).

The spelling of 553111240 in words is "five hundred fifty-three million, one hundred eleven thousand, two hundred forty".