155263650 has 48 divisors (see below), whose sum is σ = 386400864. Its totient is φ = 41258880.

The previous prime is 155263637. The next prime is 155263681. The reversal of 155263650 is 56362551.

It is a super-2 number, since 2×155263650² = 48213602022645000, which contains 22 as substring.

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, 45297 + ... + 48603.

It is an arithmetic number, because the mean of its divisors is an integer number (8050018).

Almost surely, 2^155263650 is an apocalyptic number.

155263650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 155263650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193200432).

155263650 is an abundant number, since it is smaller than the sum of its proper divisors (231137214).

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

155263650 is a wasteful number, since it uses less digits than its factorization.

155263650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3635 (or 3630 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 155263650 is about 12460.4835379691. The cubic root of 155263650 is about 537.4729317539.

The spelling of 155263650 in words is "one hundred fifty-five million, two hundred sixty-three thousand, six hundred fifty".