551749948 has 6 divisors (see below), whose sum is σ = 965562416. Its totient is φ = 275874972.

The previous prime is 551749931. The next prime is 551749951. The reversal of 551749948 is 849947155.

It is a junction number, because it is equal to n+sod(n) for n = 551749895 and 551749904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68968740 + ... + 68968747.

Almost surely, 2^551749948 is an apocalyptic number.

It is an amenable number.

551749948 is a deficient number, since it is larger than the sum of its proper divisors (413812468).

551749948 is a wasteful number, since it uses less digits than its factorization.

551749948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137937491 (or 137937489 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 52.

The square root of 551749948 is about 23489.3581862085. The cubic root of 551749948 is about 820.1893019228.

The spelling of 551749948 in words is "five hundred fifty-one million, seven hundred forty-nine thousand, nine hundred forty-eight".