1552371540 has 24 divisors (see below), whose sum is σ = 4346640480. Its totient is φ = 413965728.

The previous prime is 1552371539. The next prime is 1552371547. The reversal of 1552371540 is 451732551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1552371547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12936370 + ... + 12936489.

It is an arithmetic number, because the mean of its divisors is an integer number (181110020).

Almost surely, 2^1552371540 is an apocalyptic number.

1552371540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1552371540 is an abundant number, since it is smaller than the sum of its proper divisors (2794268940).

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

1552371540 is a wasteful number, since it uses less digits than its factorization.

1552371540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25872871 (or 25872869 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 1552371540 is about 39400.1464464283. The cubic root of 1552371540 is about 1157.8844566602.

The spelling of 1552371540 in words is "one billion, five hundred fifty-two million, three hundred seventy-one thousand, five hundred forty".