1055715550 has 24 divisors (see below), whose sum is σ = 1975404816. Its totient is φ = 419754240.

The previous prime is 1055715547. The next prime is 1055715569. The reversal of 1055715550 is 555175501.

It is a happy number.

It is a super-3 number, since 3×1055715550³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54867 + ... + 71566.

It is an arithmetic number, because the mean of its divisors is an integer number (82308534).

Almost surely, 2^1055715550 is an apocalyptic number.

1055715550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1055715550 is a deficient number, since it is larger than the sum of its proper divisors (919689266).

1055715550 is a wasteful number, since it uses less digits than its factorization.

1055715550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126612 (or 126607 counting only the distinct ones).

The product of its (nonzero) digits is 21875, while the sum is 34.

The square root of 1055715550 is about 32491.7766519469. The cubic root of 1055715550 is about 1018.2372315065.

The spelling of 1055715550 in words is "one billion, fifty-five million, seven hundred fifteen thousand, five hundred fifty".