249051220052 has 12 divisors (see below), whose sum is σ = 437327144436. Its totient is φ = 124100607360.

The previous prime is 249051220043. The next prime is 249051220081. The reversal of 249051220052 is 250022150942.

It can be written as a sum of positive squares in 2 ways, for example, as 122972254276 + 126078965776 = 350674^2 + 355076^2 .

It is a super-3 number, since 3×249051220052³ (a number of 35 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106249349 + ... + 106251692.

It is an arithmetic number, because the mean of its divisors is an integer number (36443928703).

Almost surely, 2^249051220052 is an apocalyptic number.

It is an amenable number.

249051220052 is a deficient number, since it is larger than the sum of its proper divisors (188275924384).

249051220052 is a wasteful number, since it uses less digits than its factorization.

249051220052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212501338 (or 212501336 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 249051220052 its reverse (250022150942), we get a palindrome (499073370994).

The spelling of 249051220052 in words is "two hundred forty-nine billion, fifty-one million, two hundred twenty thousand, fifty-two".