1551040500 has 48 divisors (see below), whose sum is σ = 4516634304. Its totient is φ = 413610400.

The previous prime is 1551040483. The next prime is 1551040501. The reversal of 1551040500 is 50401551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1551040501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 515514 + ... + 518513.

It is an arithmetic number, because the mean of its divisors is an integer number (94096548).

Almost surely, 2^1551040500 is an apocalyptic number.

1551040500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1551040500 is an abundant number, since it is smaller than the sum of its proper divisors (2965593804).

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

1551040500 is a wasteful number, since it uses less digits than its factorization.

1551040500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034049 (or 1034037 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 1551040500 is about 39383.2515163489. The cubic root of 1551040500 is about 1157.5534295442.

The spelling of 1551040500 in words is "one billion, five hundred fifty-one million, forty thousand, five hundred".