551948040 has 128 divisors (see below), whose sum is σ = 2102688000. Its totient is φ = 126157824.

The previous prime is 551948017. The next prime is 551948071. The reversal of 551948040 is 40849155.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 551947986 and 551948004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28945 + ... + 44064.

It is an arithmetic number, because the mean of its divisors is an integer number (16427250).

Almost surely, 2^551948040 is an apocalyptic number.

It is an amenable number.

551948040 is an abundant number, since it is smaller than the sum of its proper divisors (1550739960).

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

551948040 is a wasteful number, since it uses less digits than its factorization.

551948040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73036 (or 73026 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 551948040 is about 23493.5744406848. The cubic root of 551948040 is about 820.2874463205.

The spelling of 551948040 in words is "five hundred fifty-one million, nine hundred forty-eight thousand, forty".