1245055550 has 96 divisors (see below), whose sum is σ = 2569924800. Its totient is φ = 447068160.

The previous prime is 1245055543. The next prime is 1245055577. The reversal of 1245055550 is 555505421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1233446 + ... + 1234454.

It is an arithmetic number, because the mean of its divisors is an integer number (26770050).

Almost surely, 2^1245055550 is an apocalyptic number.

1245055550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1245055550 is an abundant number, since it is smaller than the sum of its proper divisors (1324869250).

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

1245055550 is a wasteful number, since it uses less digits than its factorization.

1245055550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110 (or 1105 counting only the distinct ones).

The product of its (nonzero) digits is 25000, while the sum is 32.

The square root of 1245055550 is about 35285.3446915288. The cubic root of 1245055550 is about 1075.7951355389.

The spelling of 1245055550 in words is "one billion, two hundred forty-five million, fifty-five thousand, five hundred fifty".