1045621550 has 48 divisors (see below), whose sum is σ = 2084210352. Its totient is φ = 388876800.

The previous prime is 1045621543. The next prime is 1045621571. The reversal of 1045621550 is 551265401.

It is a happy number.

It is a congruent number.

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, 63140 + ... + 77960.

It is an arithmetic number, because the mean of its divisors is an integer number (43421049).

Almost surely, 2^1045621550 is an apocalyptic number.

1045621550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1045621550 is a deficient number, since it is larger than the sum of its proper divisors (1038588802).

1045621550 is a wasteful number, since it uses less digits than its factorization.

1045621550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14933 (or 14928 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 1045621550 is about 32336.0719630570. The cubic root of 1045621550 is about 1014.9816137157.

Adding to 1045621550 its reverse (551265401), we get a palindrome (1596886951).

The spelling of 1045621550 in words is "one billion, forty-five million, six hundred twenty-one thousand, five hundred fifty".