55497736450 has 48 divisors (see below), whose sum is σ = 114999592680. Its totient is φ = 19784862720.

The previous prime is 55497736423. The next prime is 55497736501. The reversal of 55497736450 is 5463779455.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 2010535921 + 53487200529 = 44839^2 + 231273^2 .

It is a super-3 number, since 3×55497736450³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55497736391 and 55497736400.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1453239 + ... + 1490938.

Almost surely, 2^55497736450 is an apocalyptic number.

55497736450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55497736450 is an abundant number, since it is smaller than the sum of its proper divisors (59501856230).

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

55497736450 is a wasteful number, since it uses less digits than its factorization.

55497736450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2944231 (or 2944226 counting only the distinct ones).

The product of its (nonzero) digits is 15876000, while the sum is 55.

The spelling of 55497736450 in words is "fifty-five billion, four hundred ninety-seven million, seven hundred thirty-six thousand, four hundred fifty".