551245321450 has 12 divisors (see below), whose sum is σ = 1025316297990. Its totient is φ = 220498128560.

The previous prime is 551245321387. The next prime is 551245321513. The reversal of 551245321450 is 54123542155.

It is an interprime number because it is at equal distance from previous prime (551245321387) and next prime (551245321513).

It can be written as a sum of positive squares in 3 ways, for example, as 266197179249 + 285048142201 = 515943^2 + 533899^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5512453165 + ... + 5512453264.

Almost surely, 2^551245321450 is an apocalyptic number.

551245321450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

551245321450 is a deficient number, since it is larger than the sum of its proper divisors (474070976540).

551245321450 is a wasteful number, since it uses less digits than its factorization.

551245321450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11024906441 (or 11024906436 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 551245321450 in words is "five hundred fifty-one billion, two hundred forty-five million, three hundred twenty-one thousand, four hundred fifty".