249248707537954 has 4 divisors (see below), whose sum is σ = 373873061306934. Its totient is φ = 124624353768976.

The previous prime is 249248707537937. The next prime is 249248707537981. The reversal of 249248707537954 is 459735707842942.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 173831172095025 + 75417535442929 = 13184505^2 + 8684327^2 .

It is a super-2 number, since 2×249248707537954² (a number of 30 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (76) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62312176884487 + ... + 62312176884490.

Almost surely, 2^{249248707537954} is an apocalyptic number.

249248707537954 is a deficient number, since it is larger than the sum of its proper divisors (124624353768980).

249248707537954 is a wasteful number, since it uses less digits than its factorization.

249248707537954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124624353768979.

The product of its (nonzero) digits is 4267468800, while the sum is 76.

The spelling of 249248707537954 in words is "two hundred forty-nine trillion, two hundred forty-eight billion, seven hundred seven million, five hundred thirty-seven thousand, nine hundred fifty-four".