248761556 has 6 divisors (see below), whose sum is σ = 435332730. Its totient is φ = 124380776.

The previous prime is 248761549. The next prime is 248761559. The reversal of 248761556 is 655167842.

It can be written as a sum of positive squares in only one way, i.e., 246992656 + 1768900 = 15716^2 + 1330^2 .

It is a super-2 number, since 2×248761556² = 123764623487082272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248761559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31095191 + ... + 31095198.

It is an arithmetic number, because the mean of its divisors is an integer number (72555455).

Almost surely, 2^248761556 is an apocalyptic number.

It is an amenable number.

248761556 is a deficient number, since it is larger than the sum of its proper divisors (186571174).

248761556 is a wasteful number, since it uses less digits than its factorization.

248761556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62190393 (or 62190391 counting only the distinct ones).

The product of its digits is 403200, while the sum is 44.

The square root of 248761556 is about 15772.1766411615. The cubic root of 248761556 is about 628.9185747429.

The spelling of 248761556 in words is "two hundred forty-eight million, seven hundred sixty-one thousand, five hundred fifty-six".