2231401550 has 72 divisors (see below), whose sum is σ = 4876031664. Its totient is φ = 744215040.

The previous prime is 2231401541. The next prime is 2231401559. The reversal of 2231401550 is 551041322.

It is an interprime number because it is at equal distance from previous prime (2231401541) and next prime (2231401559).

It is a super-3 number, since 3×2231401550³ (a number of 29 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231401559) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 476822 + ... + 481478.

It is an arithmetic number, because the mean of its divisors is an integer number (67722662).

Almost surely, 2^2231401550 is an apocalyptic number.

2231401550 is an abundant number, since it is smaller than the sum of its proper divisors (2644630114).

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

2231401550 is a wasteful number, since it uses less digits than its factorization.

2231401550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4750 (or 4708 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2231401550 is about 47237.7132173013. The cubic root of 2231401550 is about 1306.7502047134.

Adding to 2231401550 its reverse (551041322), we get a palindrome (2782442872).

The spelling of 2231401550 in words is "two billion, two hundred thirty-one million, four hundred one thousand, five hundred fifty".